Finding the Fourth Proportional to 5,100.85, 7,039.11 and 2,862.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.85 : 7,039.11 = 2,862.94 : x
2. Step 2: Convert to fraction form
   5,100.85/7,039.11 = 2,862.94/x
3. Step 3: Cross multiply
   5,100.85x = 7,039.11 × 2,862.94
4. Step 4: Simplify right side
   5,100.85x = 20,152,549.58
5. Step 5: Solve for x
   x = 20,152,549.58/5,100.85
6. Step 6: Final answer
   x = 3,950.82