Finding the Fourth Proportional to 32,472.27, 48,704.31 and 10,287.90

Step by Step Solution

1. Step 1: Write the proportion equation
   32,472.27 : 48,704.31 = 10,287.90 : x
2. Step 2: Convert to fraction form
   32,472.27/48,704.31 = 10,287.90/x
3. Step 3: Cross multiply
   32,472.27x = 48,704.31 × 10,287.90
4. Step 4: Simplify right side
   32,472.27x = 501,065,070.85
5. Step 5: Solve for x
   x = 501,065,070.85/32,472.27
6. Step 6: Final answer
   x = 15,430.55