Finding the Fourth Proportional to 34,128.72, 51,193.20 and 32,116.80

Step by Step Solution

1. Step 1: Write the proportion equation
   34,128.72 : 51,193.20 = 32,116.80 : x
2. Step 2: Convert to fraction form
   34,128.72/51,193.20 = 32,116.80/x
3. Step 3: Cross multiply
   34,128.72x = 51,193.20 × 32,116.80
4. Step 4: Simplify right side
   34,128.72x = 1,644,161,765.76
5. Step 5: Solve for x
   x = 1,644,161,765.76/34,128.72
6. Step 6: Final answer
   x = 48,175.31