Finding the Fourth Proportional to 9,150.22, 12,626.85 and 5,116.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.22 : 12,626.85 = 5,116.78 : x
2. Step 2: Convert to fraction form
   9,150.22/12,626.85 = 5,116.78/x
3. Step 3: Cross multiply
   9,150.22x = 12,626.85 × 5,116.78
4. Step 4: Simplify right side
   9,150.22x = 64,608,813.54
5. Step 5: Solve for x
   x = 64,608,813.54/9,150.22
6. Step 6: Final answer
   x = 7,060.90