Finding the Fourth Proportional to 10,091.83, 15,139.41 and 3,519.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.83 : 15,139.41 = 3,519.94 : x
2. Step 2: Convert to fraction form
   10,091.83/15,139.41 = 3,519.94/x
3. Step 3: Cross multiply
   10,091.83x = 15,139.41 × 3,519.94
4. Step 4: Simplify right side
   10,091.83x = 53,289,814.84
5. Step 5: Solve for x
   x = 53,289,814.84/10,091.83
6. Step 6: Final answer
   x = 5,280.49