Finding the Fourth Proportional to 9,680.05, 13,359.57 and 5,432.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,680.05 : 13,359.57 = 5,432.25 : x
2. Step 2: Convert to fraction form
   9,680.05/13,359.57 = 5,432.25/x
3. Step 3: Cross multiply
   9,680.05x = 13,359.57 × 5,432.25
4. Step 4: Simplify right side
   9,680.05x = 72,572,524.13
5. Step 5: Solve for x
   x = 72,572,524.13/9,680.05
6. Step 6: Final answer
   x = 7,497.12