Finding the Fourth Proportional to 35,258.50, 48,658.17 and 20,354.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,258.50 : 48,658.17 = 20,354.50 : x
2. Step 2: Convert to fraction form
   35,258.50/48,658.17 = 20,354.50/x
3. Step 3: Cross multiply
   35,258.50x = 48,658.17 × 20,354.50
4. Step 4: Simplify right side
   35,258.50x = 990,412,721.27
5. Step 5: Solve for x
   x = 990,412,721.27/35,258.50
6. Step 6: Final answer
   x = 28,090.04