Finding the Fourth Proportional to 9,792.16, 14,686.32 and 2,866.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,792.16 : 14,686.32 = 2,866.72 : x
2. Step 2: Convert to fraction form
   9,792.16/14,686.32 = 2,866.72/x
3. Step 3: Cross multiply
   9,792.16x = 14,686.32 × 2,866.72
4. Step 4: Simplify right side
   9,792.16x = 42,101,567.27
5. Step 5: Solve for x
   x = 42,101,567.27/9,792.16
6. Step 6: Final answer
   x = 4,299.52