Finding the Fourth Proportional to 8,256.12, 12,373.23 and 7,155.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,256.12 : 12,373.23 = 7,155.33 : x
2. Step 2: Convert to fraction form
   8,256.12/12,373.23 = 7,155.33/x
3. Step 3: Cross multiply
   8,256.12x = 12,373.23 × 7,155.33
4. Step 4: Simplify right side
   8,256.12x = 88,534,543.82
5. Step 5: Solve for x
   x = 88,534,543.82/8,256.12
6. Step 6: Final answer
   x = 10,723.50