Finding the Fourth Proportional to 5,100.91, 7,039.38 and 2,862.95

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.91 : 7,039.38 = 2,862.95 : x
2. Step 2: Convert to fraction form
   5,100.91/7,039.38 = 2,862.95/x
3. Step 3: Cross multiply
   5,100.91x = 7,039.38 × 2,862.95
4. Step 4: Simplify right side
   5,100.91x = 20,153,410.57
5. Step 5: Solve for x
   x = 20,153,410.57/5,100.91
6. Step 6: Final answer
   x = 3,950.95