Finding the Fourth Proportional to 10,565.09, 14,581.98 and 7,217.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,565.09 : 14,581.98 = 7,217.15 : x
2. Step 2: Convert to fraction form
   10,565.09/14,581.98 = 7,217.15/x
3. Step 3: Cross multiply
   10,565.09x = 14,581.98 × 7,217.15
4. Step 4: Simplify right side
   10,565.09x = 105,240,373.41
5. Step 5: Solve for x
   x = 105,240,373.41/10,565.09
6. Step 6: Final answer
   x = 9,961.15