Finding the Fourth Proportional to 31,139.04, 42,973.08 and 17,711.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,139.04 : 42,973.08 = 17,711.52 : x
2. Step 2: Convert to fraction form
   31,139.04/42,973.08 = 17,711.52/x
3. Step 3: Cross multiply
   31,139.04x = 42,973.08 × 17,711.52
4. Step 4: Simplify right side
   31,139.04x = 761,118,565.88
5. Step 5: Solve for x
   x = 761,118,565.88/31,139.04
6. Step 6: Final answer
   x = 24,442.58