Finding the Fourth Proportional to 10,686.19, 14,751.05 and 9,565.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.19 : 14,751.05 = 9,565.15 : x
2. Step 2: Convert to fraction form
   10,686.19/14,751.05 = 9,565.15/x
3. Step 3: Cross multiply
   10,686.19x = 14,751.05 × 9,565.15
4. Step 4: Simplify right side
   10,686.19x = 141,095,974.50
5. Step 5: Solve for x
   x = 141,095,974.50/10,686.19
6. Step 6: Final answer
   x = 13,203.59