Finding the Fourth Proportional to 10,091.73, 15,137.69 and 3,517.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.73 : 15,137.69 = 3,517.91 : x
2. Step 2: Convert to fraction form
   10,091.73/15,137.69 = 3,517.91/x
3. Step 3: Cross multiply
   10,091.73x = 15,137.69 × 3,517.91
4. Step 4: Simplify right side
   10,091.73x = 53,252,994.52
5. Step 5: Solve for x
   x = 53,252,994.52/10,091.73
6. Step 6: Final answer
   x = 5,276.89