Finding the Fourth Proportional to 12,331.22, 17,016.23 and 7,788.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,331.22 : 17,016.23 = 7,788.61 : x
2. Step 2: Convert to fraction form
   12,331.22/17,016.23 = 7,788.61/x
3. Step 3: Cross multiply
   12,331.22x = 17,016.23 × 7,788.61
4. Step 4: Simplify right side
   12,331.22x = 132,532,655.12
5. Step 5: Solve for x
   x = 132,532,655.12/12,331.22
6. Step 6: Final answer
   x = 10,747.73