Finding the Fourth Proportional to 9,378.05, 14,067.82 and 3,138.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,378.05 : 14,067.82 = 3,138.10 : x
2. Step 2: Convert to fraction form
   9,378.05/14,067.82 = 3,138.10/x
3. Step 3: Cross multiply
   9,378.05x = 14,067.82 × 3,138.10
4. Step 4: Simplify right side
   9,378.05x = 44,146,155.60
5. Step 5: Solve for x
   x = 44,146,155.60/9,378.05
6. Step 6: Final answer
   x = 4,707.39