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Finding the Fourth Proportional to 12,899.60, 17,802.60 and 7,591.76

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Solution

The fourth proportional to 12,899.60, 17,802.60 and 7,591.76 is: 10,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.60 : 17,802.60 = 7,591.76 : x
  2. Step 2: Convert to fraction form
    12,899.60/17,802.60 = 7,591.76/x
  3. Step 3: Cross multiply
    12,899.60x = 17,802.60 × 7,591.76
  4. Step 4: Simplify right side
    12,899.60x = 135,153,066.58
  5. Step 5: Solve for x
    x = 135,153,066.58/12,899.60
  6. Step 6: Final answer
    x = 10,477.31

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