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Finding the Fourth Proportional to 12,224.25, 18,345.59 and 8,945.79

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Solution

The fourth proportional to 12,224.25, 18,345.59 and 8,945.79 is: 13,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.25 : 18,345.59 = 8,945.79 : x
  2. Step 2: Convert to fraction form
    12,224.25/18,345.59 = 8,945.79/x
  3. Step 3: Cross multiply
    12,224.25x = 18,345.59 × 8,945.79
  4. Step 4: Simplify right side
    12,224.25x = 164,115,750.84
  5. Step 5: Solve for x
    x = 164,115,750.84/12,224.25
  6. Step 6: Final answer
    x = 13,425.42

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