Finding the Fourth Proportional to 12,377.49, 18,565.69 and 3,612.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,377.49 : 18,565.69 = 3,612.75 : x
2. Step 2: Convert to fraction form
   12,377.49/18,565.69 = 3,612.75/x
3. Step 3: Cross multiply
   12,377.49x = 18,565.69 × 3,612.75
4. Step 4: Simplify right side
   12,377.49x = 67,073,196.55
5. Step 5: Solve for x
   x = 67,073,196.55/12,377.49
6. Step 6: Final answer
   x = 5,418.97