Finding the Fourth Proportional to 29,081.94, 43,630.41 and 12,205.89

Step by Step Solution

1. Step 1: Write the proportion equation
   29,081.94 : 43,630.41 = 12,205.89 : x
2. Step 2: Convert to fraction form
   29,081.94/43,630.41 = 12,205.89/x
3. Step 3: Cross multiply
   29,081.94x = 43,630.41 × 12,205.89
4. Step 4: Simplify right side
   29,081.94x = 532,548,030.89
5. Step 5: Solve for x
   x = 532,548,030.89/29,081.94
6. Step 6: Final answer
   x = 18,311.99