Finding the Fourth Proportional to 8,915.93, 12,309.96 and 5,560.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,915.93 : 12,309.96 = 5,560.10 : x
2. Step 2: Convert to fraction form
   8,915.93/12,309.96 = 5,560.10/x
3. Step 3: Cross multiply
   8,915.93x = 12,309.96 × 5,560.10
4. Step 4: Simplify right side
   8,915.93x = 68,444,608.60
5. Step 5: Solve for x
   x = 68,444,608.60/8,915.93
6. Step 6: Final answer
   x = 7,676.67