Finding the Fourth Proportional to 22,337.32, 30,826.22 and 12,905.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,337.32 : 30,826.22 = 12,905.88 : x
2. Step 2: Convert to fraction form
   22,337.32/30,826.22 = 12,905.88/x
3. Step 3: Cross multiply
   22,337.32x = 30,826.22 × 12,905.88
4. Step 4: Simplify right side
   22,337.32x = 397,839,562.04
5. Step 5: Solve for x
   x = 397,839,562.04/22,337.32
6. Step 6: Final answer
   x = 17,810.53