Finding the Fourth Proportional to 10,411.80, 15,600.42 and 7,327.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,411.80 : 15,600.42 = 7,327.32 : x
2. Step 2: Convert to fraction form
   10,411.80/15,600.42 = 7,327.32/x
3. Step 3: Cross multiply
   10,411.80x = 15,600.42 × 7,327.32
4. Step 4: Simplify right side
   10,411.80x = 114,309,269.47
5. Step 5: Solve for x
   x = 114,309,269.47/10,411.80
6. Step 6: Final answer
   x = 10,978.82