Finding the Fourth Proportional to 5,100.99, 7,039.64 and 2,862.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.99 : 7,039.64 = 2,862.75 : x
2. Step 2: Convert to fraction form
   5,100.99/7,039.64 = 2,862.75/x
3. Step 3: Cross multiply
   5,100.99x = 7,039.64 × 2,862.75
4. Step 4: Simplify right side
   5,100.99x = 20,152,715.10
5. Step 5: Solve for x
   x = 20,152,715.10/5,100.99
6. Step 6: Final answer
   x = 3,950.75