Finding the Fourth Proportional to 9,380.43, 14,067.81 and 3,138.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,380.43 : 14,067.81 = 3,138.98 : x
2. Step 2: Convert to fraction form
   9,380.43/14,067.81 = 3,138.98/x
3. Step 3: Cross multiply
   9,380.43x = 14,067.81 × 3,138.98
4. Step 4: Simplify right side
   9,380.43x = 44,158,503.89
5. Step 5: Solve for x
   x = 44,158,503.89/9,380.43
6. Step 6: Final answer
   x = 4,707.51