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Finding the Fourth Proportional to 102,861.72, 141,948.45 and 57,539.52

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Solution

The fourth proportional to 102,861.72, 141,948.45 and 57,539.52 is: 79,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,861.72 : 141,948.45 = 57,539.52 : x
  2. Step 2: Convert to fraction form
    102,861.72/141,948.45 = 57,539.52/x
  3. Step 3: Cross multiply
    102,861.72x = 141,948.45 × 57,539.52
  4. Step 4: Simplify right side
    102,861.72x = 8,167,645,677.74
  5. Step 5: Solve for x
    x = 8,167,645,677.74/102,861.72
  6. Step 6: Final answer
    x = 79,404.13

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