Finding the Fourth Proportional to 9,167.82, 12,650.22 and 5,390.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,167.82 : 12,650.22 = 5,390.70 : x
2. Step 2: Convert to fraction form
   9,167.82/12,650.22 = 5,390.70/x
3. Step 3: Cross multiply
   9,167.82x = 12,650.22 × 5,390.70
4. Step 4: Simplify right side
   9,167.82x = 68,193,540.95
5. Step 5: Solve for x
   x = 68,193,540.95/9,167.82
6. Step 6: Final answer
   x = 7,438.36