Finding the Fourth Proportional to 7,772.42, 10,719.33 and 5,253.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,772.42 : 10,719.33 = 5,253.86 : x
2. Step 2: Convert to fraction form
   7,772.42/10,719.33 = 5,253.86/x
3. Step 3: Cross multiply
   7,772.42x = 10,719.33 × 5,253.86
4. Step 4: Simplify right side
   7,772.42x = 56,317,859.11
5. Step 5: Solve for x
   x = 56,317,859.11/7,772.42
6. Step 6: Final answer
   x = 7,245.86