Finding the Fourth Proportional to 7,861.28, 10,852.56 and 7,432.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,861.28 : 10,852.56 = 7,432.48 : x
2. Step 2: Convert to fraction form
   7,861.28/10,852.56 = 7,432.48/x
3. Step 3: Cross multiply
   7,861.28x = 10,852.56 × 7,432.48
4. Step 4: Simplify right side
   7,861.28x = 80,661,435.15
5. Step 5: Solve for x
   x = 80,661,435.15/7,861.28
6. Step 6: Final answer
   x = 10,260.60