Finding the Fourth Proportional to 12,377.10, 18,568.74 and 3,612.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,377.10 : 18,568.74 = 3,612.12 : x
2. Step 2: Convert to fraction form
   12,377.10/18,568.74 = 3,612.12/x
3. Step 3: Cross multiply
   12,377.10x = 18,568.74 × 3,612.12
4. Step 4: Simplify right side
   12,377.10x = 67,072,517.13
5. Step 5: Solve for x
   x = 67,072,517.13/12,377.10
6. Step 6: Final answer
   x = 5,419.08