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Finding the Fourth Proportional to 12,922.88, 19,393.08 and 5,133.44

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Solution

The fourth proportional to 12,922.88, 19,393.08 and 5,133.44 is: 7,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.88 : 19,393.08 = 5,133.44 : x
  2. Step 2: Convert to fraction form
    12,922.88/19,393.08 = 5,133.44/x
  3. Step 3: Cross multiply
    12,922.88x = 19,393.08 × 5,133.44
  4. Step 4: Simplify right side
    12,922.88x = 99,553,212.60
  5. Step 5: Solve for x
    x = 99,553,212.60/12,922.88
  6. Step 6: Final answer
    x = 7,703.64

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