Finding the Fourth Proportional to 13,468.16, 18,585.36 and 7,499.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,468.16 : 18,585.36 = 7,499.60 : x
2. Step 2: Convert to fraction form
   13,468.16/18,585.36 = 7,499.60/x
3. Step 3: Cross multiply
   13,468.16x = 18,585.36 × 7,499.60
4. Step 4: Simplify right side
   13,468.16x = 139,382,765.86
5. Step 5: Solve for x
   x = 139,382,765.86/13,468.16
6. Step 6: Final answer
   x = 10,349.06