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Finding the Fourth Proportional to 86,873.68, 119,811.68 and 66,779.20

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Solution

The fourth proportional to 86,873.68, 119,811.68 and 66,779.20 is: 92,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,873.68 : 119,811.68 = 66,779.20 : x
  2. Step 2: Convert to fraction form
    86,873.68/119,811.68 = 66,779.20/x
  3. Step 3: Cross multiply
    86,873.68x = 119,811.68 × 66,779.20
  4. Step 4: Simplify right side
    86,873.68x = 8,000,928,141.06
  5. Step 5: Solve for x
    x = 8,000,928,141.06/86,873.68
  6. Step 6: Final answer
    x = 92,098.41

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