Finding the Fourth Proportional to 5,151.56, 7,109.29 and 2,913.77

Step by Step Solution

1. Step 1: Write the proportion equation
   5,151.56 : 7,109.29 = 2,913.77 : x
2. Step 2: Convert to fraction form
   5,151.56/7,109.29 = 2,913.77/x
3. Step 3: Cross multiply
   5,151.56x = 7,109.29 × 2,913.77
4. Step 4: Simplify right side
   5,151.56x = 20,714,835.92
5. Step 5: Solve for x
   x = 20,714,835.92/5,151.56
6. Step 6: Final answer
   x = 4,021.08