Finding the Fourth Proportional to 31,007.76, 42,800.52 and 17,587.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007.76 : 42,800.52 = 17,587.98 : x
2. Step 2: Convert to fraction form
   31,007.76/42,800.52 = 17,587.98/x
3. Step 3: Cross multiply
   31,007.76x = 42,800.52 × 17,587.98
4. Step 4: Simplify right side
   31,007.76x = 752,774,689.75
5. Step 5: Solve for x
   x = 752,774,689.75/31,007.76
6. Step 6: Final answer
   x = 24,276.98