Finding the Fourth Proportional to 5,100.20, 7,039.06 and 2,862.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.20 : 7,039.06 = 2,862.98 : x
2. Step 2: Convert to fraction form
   5,100.20/7,039.06 = 2,862.98/x
3. Step 3: Cross multiply
   5,100.20x = 7,039.06 × 2,862.98
4. Step 4: Simplify right side
   5,100.20x = 20,152,688.00
5. Step 5: Solve for x
   x = 20,152,688.00/5,100.20
6. Step 6: Final answer
   x = 3,951.35