Finding the Fourth Proportional to 5,155.52, 7,114.59 and 2,917.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,155.52 : 7,114.59 = 2,917.40 : x
2. Step 2: Convert to fraction form
   5,155.52/7,114.59 = 2,917.40/x
3. Step 3: Cross multiply
   5,155.52x = 7,114.59 × 2,917.40
4. Step 4: Simplify right side
   5,155.52x = 20,756,069.29
5. Step 5: Solve for x
   x = 20,756,069.29/5,155.52
6. Step 6: Final answer
   x = 4,025.99