Finding the Fourth Proportional to 9,407.20, 14,116.56 and 3,863.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407.20 : 14,116.56 = 3,863.20 : x
2. Step 2: Convert to fraction form
   9,407.20/14,116.56 = 3,863.20/x
3. Step 3: Cross multiply
   9,407.20x = 14,116.56 × 3,863.20
4. Step 4: Simplify right side
   9,407.20x = 54,535,094.59
5. Step 5: Solve for x
   x = 54,535,094.59/9,407.20
6. Step 6: Final answer
   x = 5,797.17