Finding the Fourth Proportional to 9,150.28, 13,722.17 and 3,953.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.28 : 13,722.17 = 3,953.32 : x
2. Step 2: Convert to fraction form
   9,150.28/13,722.17 = 3,953.32/x
3. Step 3: Cross multiply
   9,150.28x = 13,722.17 × 3,953.32
4. Step 4: Simplify right side
   9,150.28x = 54,248,129.10
5. Step 5: Solve for x
   x = 54,248,129.10/9,150.28
6. Step 6: Final answer
   x = 5,928.58