Finding the Fourth Proportional to 31,134.68, 42,966.33 and 16,987.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,134.68 : 42,966.33 = 16,987.52 : x
2. Step 2: Convert to fraction form
   31,134.68/42,966.33 = 16,987.52/x
3. Step 3: Cross multiply
   31,134.68x = 42,966.33 × 16,987.52
4. Step 4: Simplify right side
   31,134.68x = 729,891,529.47
5. Step 5: Solve for x
   x = 729,891,529.47/31,134.68
6. Step 6: Final answer
   x = 23,443.04