Finding the Fourth Proportional to 22,930.64, 34,399.38 and 8,138.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,930.64 : 34,399.38 = 8,138.32 : x
2. Step 2: Convert to fraction form
   22,930.64/34,399.38 = 8,138.32/x
3. Step 3: Cross multiply
   22,930.64x = 34,399.38 × 8,138.32
4. Step 4: Simplify right side
   22,930.64x = 279,953,045.72
5. Step 5: Solve for x
   x = 279,953,045.72/22,930.64
6. Step 6: Final answer
   x = 12,208.69