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Finding the Fourth Proportional to 31,010.78, 46,515.72 and 7,637.24

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Solution

The fourth proportional to 31,010.78, 46,515.72 and 7,637.24 is: 11,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,010.78 : 46,515.72 = 7,637.24 : x
  2. Step 2: Convert to fraction form
    31,010.78/46,515.72 = 7,637.24/x
  3. Step 3: Cross multiply
    31,010.78x = 46,515.72 × 7,637.24
  4. Step 4: Simplify right side
    31,010.78x = 355,251,717.41
  5. Step 5: Solve for x
    x = 355,251,717.41/31,010.78
  6. Step 6: Final answer
    x = 11,455.75

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