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Finding the Fourth Proportional to 19,323.68, 28,979.24 and 6,172.96

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Solution

The fourth proportional to 19,323.68, 28,979.24 and 6,172.96 is: 9,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.68 : 28,979.24 = 6,172.96 : x
  2. Step 2: Convert to fraction form
    19,323.68/28,979.24 = 6,172.96/x
  3. Step 3: Cross multiply
    19,323.68x = 28,979.24 × 6,172.96
  4. Step 4: Simplify right side
    19,323.68x = 178,887,689.35
  5. Step 5: Solve for x
    x = 178,887,689.35/19,323.68
  6. Step 6: Final answer
    x = 9,257.43

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