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Finding the Fourth Proportional to 123,631.08, 170,609.40 and 67,041.78

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Solution

The fourth proportional to 123,631.08, 170,609.40 and 67,041.78 is: 92,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,631.08 : 170,609.40 = 67,041.78 : x
  2. Step 2: Convert to fraction form
    123,631.08/170,609.40 = 67,041.78/x
  3. Step 3: Cross multiply
    123,631.08x = 170,609.40 × 67,041.78
  4. Step 4: Simplify right side
    123,631.08x = 11,437,957,860.73
  5. Step 5: Solve for x
    x = 11,437,957,860.73/123,631.08
  6. Step 6: Final answer
    x = 92,516.85

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