Finding the Fourth Proportional to 9,141.71, 12,616.91 and 5,366.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.71 : 12,616.91 = 5,366.96 : x
2. Step 2: Convert to fraction form
   9,141.71/12,616.91 = 5,366.96/x
3. Step 3: Cross multiply
   9,141.71x = 12,616.91 × 5,366.96
4. Step 4: Simplify right side
   9,141.71x = 67,714,377.15
5. Step 5: Solve for x
   x = 67,714,377.15/9,141.71
6. Step 6: Final answer
   x = 7,407.19