Finding the Fourth Proportional to 11,123.06, 16,679.72 and 3,330.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,123.06 : 16,679.72 = 3,330.05 : x
2. Step 2: Convert to fraction form
   11,123.06/16,679.72 = 3,330.05/x
3. Step 3: Cross multiply
   11,123.06x = 16,679.72 × 3,330.05
4. Step 4: Simplify right side
   11,123.06x = 55,544,301.59
5. Step 5: Solve for x
   x = 55,544,301.59/11,123.06
6. Step 6: Final answer
   x = 4,993.62