Finding the Fourth Proportional to 4,859.02, 7,276.17 and 3,213.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,859.02 : 7,276.17 = 3,213.10 : x
2. Step 2: Convert to fraction form
   4,859.02/7,276.17 = 3,213.10/x
3. Step 3: Cross multiply
   4,859.02x = 7,276.17 × 3,213.10
4. Step 4: Simplify right side
   4,859.02x = 23,379,061.83
5. Step 5: Solve for x
   x = 23,379,061.83/4,859.02
6. Step 6: Final answer
   x = 4,811.48