Finding the Fourth Proportional to 11,034.09, 16,558.42 and 5,191.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,034.09 : 16,558.42 = 5,191.15 : x
2. Step 2: Convert to fraction form
   11,034.09/16,558.42 = 5,191.15/x
3. Step 3: Cross multiply
   11,034.09x = 16,558.42 × 5,191.15
4. Step 4: Simplify right side
   11,034.09x = 85,957,241.98
5. Step 5: Solve for x
   x = 85,957,241.98/11,034.09
6. Step 6: Final answer
   x = 7,790.15