Finding the Fourth Proportional to 30,790.50, 42,490.89 and 22,414.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,790.50 : 42,490.89 = 22,414.02 : x
2. Step 2: Convert to fraction form
   30,790.50/42,490.89 = 22,414.02/x
3. Step 3: Cross multiply
   30,790.50x = 42,490.89 × 22,414.02
4. Step 4: Simplify right side
   30,790.50x = 952,391,658.28
5. Step 5: Solve for x
   x = 952,391,658.28/30,790.50
6. Step 6: Final answer
   x = 30,931.35