Finding the Fourth Proportional to 8,172.15, 12,250.83 and 2,976.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,172.15 : 12,250.83 = 2,976.81 : x
2. Step 2: Convert to fraction form
   8,172.15/12,250.83 = 2,976.81/x
3. Step 3: Cross multiply
   8,172.15x = 12,250.83 × 2,976.81
4. Step 4: Simplify right side
   8,172.15x = 36,468,393.25
5. Step 5: Solve for x
   x = 36,468,393.25/8,172.15
6. Step 6: Final answer
   x = 4,462.52