Finding the Fourth Proportional to 7,715.86, 10,648.29 and 5,064.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,715.86 : 10,648.29 = 5,064.82 : x
2. Step 2: Convert to fraction form
   7,715.86/10,648.29 = 5,064.82/x
3. Step 3: Cross multiply
   7,715.86x = 10,648.29 × 5,064.82
4. Step 4: Simplify right side
   7,715.86x = 53,931,672.16
5. Step 5: Solve for x
   x = 53,931,672.16/7,715.86
6. Step 6: Final answer
   x = 6,989.72