Finding the Fourth Proportional to 31,843.83, 47,766.17 and 12,123.47

Step by Step Solution

1. Step 1: Write the proportion equation
   31,843.83 : 47,766.17 = 12,123.47 : x
2. Step 2: Convert to fraction form
   31,843.83/47,766.17 = 12,123.47/x
3. Step 3: Cross multiply
   31,843.83x = 47,766.17 × 12,123.47
4. Step 4: Simplify right side
   31,843.83x = 579,091,878.73
5. Step 5: Solve for x
   x = 579,091,878.73/31,843.83
6. Step 6: Final answer
   x = 18,185.37