Finding the Fourth Proportional to 12,540.95, 17,308.27 and 7,762.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,540.95 : 17,308.27 = 7,762.42 : x
2. Step 2: Convert to fraction form
   12,540.95/17,308.27 = 7,762.42/x
3. Step 3: Cross multiply
   12,540.95x = 17,308.27 × 7,762.42
4. Step 4: Simplify right side
   12,540.95x = 134,354,022.40
5. Step 5: Solve for x
   x = 134,354,022.40/12,540.95
6. Step 6: Final answer
   x = 10,713.23