Finding the Fourth Proportional to 9,328.91, 12,874.17 and 5,080.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,328.91 : 12,874.17 = 5,080.25 : x
2. Step 2: Convert to fraction form
   9,328.91/12,874.17 = 5,080.25/x
3. Step 3: Cross multiply
   9,328.91x = 12,874.17 × 5,080.25
4. Step 4: Simplify right side
   9,328.91x = 65,403,937.77
5. Step 5: Solve for x
   x = 65,403,937.77/9,328.91
6. Step 6: Final answer
   x = 7,010.89