Finding the Fourth Proportional to 11,026.89, 16,541.37 and 3,129.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,026.89 : 16,541.37 = 3,129.57 : x
2. Step 2: Convert to fraction form
   11,026.89/16,541.37 = 3,129.57/x
3. Step 3: Cross multiply
   11,026.89x = 16,541.37 × 3,129.57
4. Step 4: Simplify right side
   11,026.89x = 51,767,375.31
5. Step 5: Solve for x
   x = 51,767,375.31/11,026.89
6. Step 6: Final answer
   x = 4,694.65