Finding the Fourth Proportional to 31,088.88, 42,902.76 and 16,941.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,088.88 : 42,902.76 = 16,941.72 : x
2. Step 2: Convert to fraction form
   31,088.88/42,902.76 = 16,941.72/x
3. Step 3: Cross multiply
   31,088.88x = 42,902.76 × 16,941.72
4. Step 4: Simplify right side
   31,088.88x = 726,846,547.15
5. Step 5: Solve for x
   x = 726,846,547.15/31,088.88
6. Step 6: Final answer
   x = 23,379.63