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Finding the Fourth Proportional to 11,055.78, 16,586.10 and 5,212.44

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Solution

The fourth proportional to 11,055.78, 16,586.10 and 5,212.44 is: 7,819.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.78 : 16,586.10 = 5,212.44 : x
  2. Step 2: Convert to fraction form
    11,055.78/16,586.10 = 5,212.44/x
  3. Step 3: Cross multiply
    11,055.78x = 16,586.10 × 5,212.44
  4. Step 4: Simplify right side
    11,055.78x = 86,454,051.08
  5. Step 5: Solve for x
    x = 86,454,051.08/11,055.78
  6. Step 6: Final answer
    x = 7,819.81

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