Finding the Fourth Proportional to 5,143.30, 7,097.90 and 3,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,143.30 : 7,097.90 = 3,152.72 : x
2. Step 2: Convert to fraction form
   5,143.30/7,097.90 = 3,152.72/x
3. Step 3: Cross multiply
   5,143.30x = 7,097.90 × 3,152.72
4. Step 4: Simplify right side
   5,143.30x = 22,377,655.00
5. Step 5: Solve for x
   x = 22,377,655.00/5,143.30
6. Step 6: Final answer
   x = 4,350.83