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Finding the Fourth Proportional to 14,405.22, 21,607.10 and 5,641.74

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Solution

The fourth proportional to 14,405.22, 21,607.10 and 5,641.74 is: 8,462.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405.22 : 21,607.10 = 5,641.74 : x
  2. Step 2: Convert to fraction form
    14,405.22/21,607.10 = 5,641.74/x
  3. Step 3: Cross multiply
    14,405.22x = 21,607.10 × 5,641.74
  4. Step 4: Simplify right side
    14,405.22x = 121,901,640.35
  5. Step 5: Solve for x
    x = 121,901,640.35/14,405.22
  6. Step 6: Final answer
    x = 8,462.32

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