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Finding the Fourth Proportional to 16,898.74, 23,320.10 and 9,345.40

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Solution

The fourth proportional to 16,898.74, 23,320.10 and 9,345.40 is: 12,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,898.74 : 23,320.10 = 9,345.40 : x
  2. Step 2: Convert to fraction form
    16,898.74/23,320.10 = 9,345.40/x
  3. Step 3: Cross multiply
    16,898.74x = 23,320.10 × 9,345.40
  4. Step 4: Simplify right side
    16,898.74x = 217,935,662.54
  5. Step 5: Solve for x
    x = 217,935,662.54/16,898.74
  6. Step 6: Final answer
    x = 12,896.56

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