Finding the Fourth Proportional to 11,233.50, 16,835.55 and 8,123.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,233.50 : 16,835.55 = 8,123.91 : x
2. Step 2: Convert to fraction form
   11,233.50/16,835.55 = 8,123.91/x
3. Step 3: Cross multiply
   11,233.50x = 16,835.55 × 8,123.91
4. Step 4: Simplify right side
   11,233.50x = 136,770,493.00
5. Step 5: Solve for x
   x = 136,770,493.00/11,233.50
6. Step 6: Final answer
   x = 12,175.23