Finding the Fourth Proportional to 31,089.04, 42,902.84 and 16,941.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,089.04 : 42,902.84 = 16,941.88 : x
2. Step 2: Convert to fraction form
   31,089.04/42,902.84 = 16,941.88/x
3. Step 3: Cross multiply
   31,089.04x = 42,902.84 × 16,941.88
4. Step 4: Simplify right side
   31,089.04x = 726,854,766.94
5. Step 5: Solve for x
   x = 726,854,766.94/31,089.04
6. Step 6: Final answer
   x = 23,379.78