Finding the Fourth Proportional to 12,123.82, 16,711.81 and 11,106.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.82 : 16,711.81 = 11,106.86 : x
2. Step 2: Convert to fraction form
   12,123.82/16,711.81 = 11,106.86/x
3. Step 3: Cross multiply
   12,123.82x = 16,711.81 × 11,106.86
4. Step 4: Simplify right side
   12,123.82x = 185,615,734.02
5. Step 5: Solve for x
   x = 185,615,734.02/12,123.82
6. Step 6: Final answer
   x = 15,310.00