Finding the Fourth Proportional to 9,377.88, 14,067.88 and 3,138.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,377.88 : 14,067.88 = 3,138.72 : x
2. Step 2: Convert to fraction form
   9,377.88/14,067.88 = 3,138.72/x
3. Step 3: Cross multiply
   9,377.88x = 14,067.88 × 3,138.72
4. Step 4: Simplify right side
   9,377.88x = 44,155,136.31
5. Step 5: Solve for x
   x = 44,155,136.31/9,377.88
6. Step 6: Final answer
   x = 4,708.43