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Finding the Fourth Proportional to 78,217.44, 117,326.16 and 22,817.76

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Solution

The fourth proportional to 78,217.44, 117,326.16 and 22,817.76 is: 34,226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,217.44 : 117,326.16 = 22,817.76 : x
  2. Step 2: Convert to fraction form
    78,217.44/117,326.16 = 22,817.76/x
  3. Step 3: Cross multiply
    78,217.44x = 117,326.16 × 22,817.76
  4. Step 4: Simplify right side
    78,217.44x = 2,677,120,160.60
  5. Step 5: Solve for x
    x = 2,677,120,160.60/78,217.44
  6. Step 6: Final answer
    x = 34,226.64

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