Finding the Fourth Proportional to 7,149.33, 9,856.35 and 5,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,149.33 : 9,856.35 = 5,359.50 : x
2. Step 2: Convert to fraction form
   7,149.33/9,856.35 = 5,359.50/x
3. Step 3: Cross multiply
   7,149.33x = 9,856.35 × 5,359.50
4. Step 4: Simplify right side
   7,149.33x = 52,825,107.83
5. Step 5: Solve for x
   x = 52,825,107.83/7,149.33
6. Step 6: Final answer
   x = 7,388.82