Finding the Fourth Proportional to 8,695.72, 12,008.55 and 7,429.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,695.72 : 12,008.55 = 7,429.33 : x
2. Step 2: Convert to fraction form
   8,695.72/12,008.55 = 7,429.33/x
3. Step 3: Cross multiply
   8,695.72x = 12,008.55 × 7,429.33
4. Step 4: Simplify right side
   8,695.72x = 89,215,480.77
5. Step 5: Solve for x
   x = 89,215,480.77/8,695.72
6. Step 6: Final answer
   x = 10,259.70