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Finding the Fourth Proportional to 209,930.76, 314,863.68 and 76,779.88

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Solution

The fourth proportional to 209,930.76, 314,863.68 and 76,779.88 is: 115,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,930.76 : 314,863.68 = 76,779.88 : x
  2. Step 2: Convert to fraction form
    209,930.76/314,863.68 = 76,779.88/x
  3. Step 3: Cross multiply
    209,930.76x = 314,863.68 × 76,779.88
  4. Step 4: Simplify right side
    209,930.76x = 24,175,195,566.76
  5. Step 5: Solve for x
    x = 24,175,195,566.76/209,930.76
  6. Step 6: Final answer
    x = 115,157.95

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