Finding the Fourth Proportional to 31,530.98, 43,510.78 and 18,092.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,530.98 : 43,510.78 = 18,092.78 : x
2. Step 2: Convert to fraction form
   31,530.98/43,510.78 = 18,092.78/x
3. Step 3: Cross multiply
   31,530.98x = 43,510.78 × 18,092.78
4. Step 4: Simplify right side
   31,530.98x = 787,230,938.40
5. Step 5: Solve for x
   x = 787,230,938.40/31,530.98
6. Step 6: Final answer
   x = 24,966.90