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Finding the Fourth Proportional to 43,806.19, 65,720.25 and 12,641.44

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Solution

The fourth proportional to 43,806.19, 65,720.25 and 12,641.44 is: 18,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,806.19 : 65,720.25 = 12,641.44 : x
  2. Step 2: Convert to fraction form
    43,806.19/65,720.25 = 12,641.44/x
  3. Step 3: Cross multiply
    43,806.19x = 65,720.25 × 12,641.44
  4. Step 4: Simplify right side
    43,806.19x = 830,798,597.16
  5. Step 5: Solve for x
    x = 830,798,597.16/43,806.19
  6. Step 6: Final answer
    x = 18,965.32

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