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Finding the Fourth Proportional to 16,728.40, 25,092.60 and 5,631.40

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Solution

The fourth proportional to 16,728.40, 25,092.60 and 5,631.40 is: 8,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.40 : 25,092.60 = 5,631.40 : x
  2. Step 2: Convert to fraction form
    16,728.40/25,092.60 = 5,631.40/x
  3. Step 3: Cross multiply
    16,728.40x = 25,092.60 × 5,631.40
  4. Step 4: Simplify right side
    16,728.40x = 141,306,467.64
  5. Step 5: Solve for x
    x = 141,306,467.64/16,728.40
  6. Step 6: Final answer
    x = 8,447.10

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