Finding the Fourth Proportional to 9,781.72, 13,475.96 and 8,002.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,781.72 : 13,475.96 = 8,002.96 : x
2. Step 2: Convert to fraction form
   9,781.72/13,475.96 = 8,002.96/x
3. Step 3: Cross multiply
   9,781.72x = 13,475.96 × 8,002.96
4. Step 4: Simplify right side
   9,781.72x = 107,847,568.84
5. Step 5: Solve for x
   x = 107,847,568.84/9,781.72
6. Step 6: Final answer
   x = 11,025.42