Finding the Fourth Proportional to 42,471.70, 63,715.20 and 17,498.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,471.70 : 63,715.20 = 17,498.10 : x
2. Step 2: Convert to fraction form
   42,471.70/63,715.20 = 17,498.10/x
3. Step 3: Cross multiply
   42,471.70x = 63,715.20 × 17,498.10
4. Step 4: Simplify right side
   42,471.70x = 1,114,894,941.12
5. Step 5: Solve for x
   x = 1,114,894,941.12/42,471.70
6. Step 6: Final answer
   x = 26,250.30