Finding the Fourth Proportional to 11,908.79, 17,849.83 and 5,586.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,908.79 : 17,849.83 = 5,586.78 : x
2. Step 2: Convert to fraction form
   11,908.79/17,849.83 = 5,586.78/x
3. Step 3: Cross multiply
   11,908.79x = 17,849.83 × 5,586.78
4. Step 4: Simplify right side
   11,908.79x = 99,723,085.80
5. Step 5: Solve for x
   x = 99,723,085.80/11,908.79
6. Step 6: Final answer
   x = 8,373.90