Finding the Fourth Proportional to 8,756.15, 13,142.12 and 5,938.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,756.15 : 13,142.12 = 5,938.16 : x
2. Step 2: Convert to fraction form
   8,756.15/13,142.12 = 5,938.16/x
3. Step 3: Cross multiply
   8,756.15x = 13,142.12 × 5,938.16
4. Step 4: Simplify right side
   8,756.15x = 78,039,915.90
5. Step 5: Solve for x
   x = 78,039,915.90/8,756.15
6. Step 6: Final answer
   x = 8,912.59