Finding the Fourth Proportional to 22,981.16, 34,462.78 and 8,939.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,981.16 : 34,462.78 = 8,939.32 : x
2. Step 2: Convert to fraction form
   22,981.16/34,462.78 = 8,939.32/x
3. Step 3: Cross multiply
   22,981.16x = 34,462.78 × 8,939.32
4. Step 4: Simplify right side
   22,981.16x = 308,073,818.51
5. Step 5: Solve for x
   x = 308,073,818.51/22,981.16
6. Step 6: Final answer
   x = 13,405.49