Finding the Fourth Proportional to 7,863.52, 10,781.33 and 7,723.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,863.52 : 10,781.33 = 7,723.12 : x
2. Step 2: Convert to fraction form
   7,863.52/10,781.33 = 7,723.12/x
3. Step 3: Cross multiply
   7,863.52x = 10,781.33 × 7,723.12
4. Step 4: Simplify right side
   7,863.52x = 83,265,505.35
5. Step 5: Solve for x
   x = 83,265,505.35/7,863.52
6. Step 6: Final answer
   x = 10,588.83