Finding the Fourth Proportional to 10,124.72, 13,978.44 and 7,762.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,124.72 : 13,978.44 = 7,762.32 : x
2. Step 2: Convert to fraction form
   10,124.72/13,978.44 = 7,762.32/x
3. Step 3: Cross multiply
   10,124.72x = 13,978.44 × 7,762.32
4. Step 4: Simplify right side
   10,124.72x = 108,505,124.38
5. Step 5: Solve for x
   x = 108,505,124.38/10,124.72
6. Step 6: Final answer
   x = 10,716.85