Finding the Fourth Proportional to 9,076.49, 12,520.13 and 5,713.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,076.49 : 12,520.13 = 5,713.47 : x
2. Step 2: Convert to fraction form
   9,076.49/12,520.13 = 5,713.47/x
3. Step 3: Cross multiply
   9,076.49x = 12,520.13 × 5,713.47
4. Step 4: Simplify right side
   9,076.49x = 71,533,387.15
5. Step 5: Solve for x
   x = 71,533,387.15/9,076.49
6. Step 6: Final answer
   x = 7,881.17