Finding the Fourth Proportional to 4,868.02, 6,715.47 and 3,100.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,868.02 : 6,715.47 = 3,100.15 : x
2. Step 2: Convert to fraction form
   4,868.02/6,715.47 = 3,100.15/x
3. Step 3: Cross multiply
   4,868.02x = 6,715.47 × 3,100.15
4. Step 4: Simplify right side
   4,868.02x = 20,818,964.32
5. Step 5: Solve for x
   x = 20,818,964.32/4,868.02
6. Step 6: Final answer
   x = 4,276.68