Finding the Fourth Proportional to 9,019.74, 12,450.92 and 7,755.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.74 : 12,450.92 = 7,755.72 : x
2. Step 2: Convert to fraction form
   9,019.74/12,450.92 = 7,755.72/x
3. Step 3: Cross multiply
   9,019.74x = 12,450.92 × 7,755.72
4. Step 4: Simplify right side
   9,019.74x = 96,565,849.26
5. Step 5: Solve for x
   x = 96,565,849.26/9,019.74
6. Step 6: Final answer
   x = 10,706.06