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Finding the Fourth Proportional to 28,978, 43,466.04 and 9,257.68

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Solution

The fourth proportional to 28,978, 43,466.04 and 9,257.68 is: 13,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978 : 43,466.04 = 9,257.68 : x
  2. Step 2: Convert to fraction form
    28,978/43,466.04 = 9,257.68/x
  3. Step 3: Cross multiply
    28,978x = 43,466.04 × 9,257.68
  4. Step 4: Simplify right side
    28,978x = 402,394,689.19
  5. Step 5: Solve for x
    x = 402,394,689.19/28,978
  6. Step 6: Final answer
    x = 13,886.21

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