Finding the Fourth Proportional to 7,759.60, 10,719.04 and 7,471.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,759.60 : 10,719.04 = 7,471.55 : x
2. Step 2: Convert to fraction form
   7,759.60/10,719.04 = 7,471.55/x
3. Step 3: Cross multiply
   7,759.60x = 10,719.04 × 7,471.55
4. Step 4: Simplify right side
   7,759.60x = 80,087,843.31
5. Step 5: Solve for x
   x = 80,087,843.31/7,759.60
6. Step 6: Final answer
   x = 10,321.13