Finding the Fourth Proportional to 8,757.90, 12,085.89 and 5,614.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.90 : 12,085.89 = 5,614.08 : x
2. Step 2: Convert to fraction form
   8,757.90/12,085.89 = 5,614.08/x
3. Step 3: Cross multiply
   8,757.90x = 12,085.89 × 5,614.08
4. Step 4: Simplify right side
   8,757.90x = 67,851,153.33
5. Step 5: Solve for x
   x = 67,851,153.33/8,757.90
6. Step 6: Final answer
   x = 7,747.42