Finding the Fourth Proportional to 11,435.50, 17,136.78 and 8,301.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,435.50 : 17,136.78 = 8,301.88 : x
2. Step 2: Convert to fraction form
   11,435.50/17,136.78 = 8,301.88/x
3. Step 3: Cross multiply
   11,435.50x = 17,136.78 × 8,301.88
4. Step 4: Simplify right side
   11,435.50x = 142,267,491.15
5. Step 5: Solve for x
   x = 142,267,491.15/11,435.50
6. Step 6: Final answer
   x = 12,440.86