Finding the Fourth Proportional to 9,337.56, 12,887.32 and 5,560.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.56 : 12,887.32 = 5,560.90 : x
2. Step 2: Convert to fraction form
   9,337.56/12,887.32 = 5,560.90/x
3. Step 3: Cross multiply
   9,337.56x = 12,887.32 × 5,560.90
4. Step 4: Simplify right side
   9,337.56x = 71,665,097.79
5. Step 5: Solve for x
   x = 71,665,097.79/9,337.56
6. Step 6: Final answer
   x = 7,674.93