Finding the Fourth Proportional to 9,077.38, 12,517.29 and 7,185.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,077.38 : 12,517.29 = 7,185.94 : x
2. Step 2: Convert to fraction form
   9,077.38/12,517.29 = 7,185.94/x
3. Step 3: Cross multiply
   9,077.38x = 12,517.29 × 7,185.94
4. Step 4: Simplify right side
   9,077.38x = 89,948,494.90
5. Step 5: Solve for x
   x = 89,948,494.90/9,077.38
6. Step 6: Final answer
   x = 9,909.08