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Finding the Fourth Proportional to 8,696.16, 13,029.66 and 4,788.72

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Solution

The fourth proportional to 8,696.16, 13,029.66 and 4,788.72 is: 7,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.16 : 13,029.66 = 4,788.72 : x
  2. Step 2: Convert to fraction form
    8,696.16/13,029.66 = 4,788.72/x
  3. Step 3: Cross multiply
    8,696.16x = 13,029.66 × 4,788.72
  4. Step 4: Simplify right side
    8,696.16x = 62,395,393.44
  5. Step 5: Solve for x
    x = 62,395,393.44/8,696.16
  6. Step 6: Final answer
    x = 7,175.05

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