Finding the Fourth Proportional to 10,321.60, 15,471.60 and 3,745.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,321.60 : 15,471.60 = 3,745.12 : x
2. Step 2: Convert to fraction form
   10,321.60/15,471.60 = 3,745.12/x
3. Step 3: Cross multiply
   10,321.60x = 15,471.60 × 3,745.12
4. Step 4: Simplify right side
   10,321.60x = 57,942,998.59
5. Step 5: Solve for x
   x = 57,942,998.59/10,321.60
6. Step 6: Final answer
   x = 5,613.76