Finding the Fourth Proportional to 10,489.86, 14,480.52 and 7,500.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,489.86 : 14,480.52 = 7,500.48 : x
2. Step 2: Convert to fraction form
   10,489.86/14,480.52 = 7,500.48/x
3. Step 3: Cross multiply
   10,489.86x = 14,480.52 × 7,500.48
4. Step 4: Simplify right side
   10,489.86x = 108,610,850.65
5. Step 5: Solve for x
   x = 108,610,850.65/10,489.86
6. Step 6: Final answer
   x = 10,353.89