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Finding the Fourth Proportional to 45,209.31, 67,806.23 and 11,929.73

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Solution

The fourth proportional to 45,209.31, 67,806.23 and 11,929.73 is: 17,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,209.31 : 67,806.23 = 11,929.73 : x
  2. Step 2: Convert to fraction form
    45,209.31/67,806.23 = 11,929.73/x
  3. Step 3: Cross multiply
    45,209.31x = 67,806.23 × 11,929.73
  4. Step 4: Simplify right side
    45,209.31x = 808,909,617.54
  5. Step 5: Solve for x
    x = 808,909,617.54/45,209.31
  6. Step 6: Final answer
    x = 17,892.55

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