Finding the Fourth Proportional to 10,091.26, 15,139.43 and 3,517.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.26 : 15,139.43 = 3,517.51 : x
2. Step 2: Convert to fraction form
   10,091.26/15,139.43 = 3,517.51/x
3. Step 3: Cross multiply
   10,091.26x = 15,139.43 × 3,517.51
4. Step 4: Simplify right side
   10,091.26x = 53,253,096.42
5. Step 5: Solve for x
   x = 53,253,096.42/10,091.26
6. Step 6: Final answer
   x = 5,277.15