Finding the Fourth Proportional to 9,880.67, 14,825.17 and 4,331.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,880.67 : 14,825.17 = 4,331.15 : x
2. Step 2: Convert to fraction form
   9,880.67/14,825.17 = 4,331.15/x
3. Step 3: Cross multiply
   9,880.67x = 14,825.17 × 4,331.15
4. Step 4: Simplify right side
   9,880.67x = 64,210,013.39
5. Step 5: Solve for x
   x = 64,210,013.39/9,880.67
6. Step 6: Final answer
   x = 6,498.55