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Finding the Fourth Proportional to 45,638.73, 68,462.46 and 12,359.16

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Solution

The fourth proportional to 45,638.73, 68,462.46 and 12,359.16 is: 18,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,638.73 : 68,462.46 = 12,359.16 : x
  2. Step 2: Convert to fraction form
    45,638.73/68,462.46 = 12,359.16/x
  3. Step 3: Cross multiply
    45,638.73x = 68,462.46 × 12,359.16
  4. Step 4: Simplify right side
    45,638.73x = 846,138,497.13
  5. Step 5: Solve for x
    x = 846,138,497.13/45,638.73
  6. Step 6: Final answer
    x = 18,539.92

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