Finding the Fourth Proportional to 9,086.72, 12,539.04 and 5,360

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.72 : 12,539.04 = 5,360 : x
2. Step 2: Convert to fraction form
   9,086.72/12,539.04 = 5,360/x
3. Step 3: Cross multiply
   9,086.72x = 12,539.04 × 5,360
4. Step 4: Simplify right side
   9,086.72x = 67,209,254.40
5. Step 5: Solve for x
   x = 67,209,254.40/9,086.72
6. Step 6: Final answer
   x = 7,396.43