Finding the Fourth Proportional to 5,150.76, 7,108.06 and 2,792.90

Step by Step Solution

1. Step 1: Write the proportion equation
   5,150.76 : 7,108.06 = 2,792.90 : x
2. Step 2: Convert to fraction form
   5,150.76/7,108.06 = 2,792.90/x
3. Step 3: Cross multiply
   5,150.76x = 7,108.06 × 2,792.90
4. Step 4: Simplify right side
   5,150.76x = 19,852,100.77
5. Step 5: Solve for x
   x = 19,852,100.77/5,150.76
6. Step 6: Final answer
   x = 3,854.21