Finding the Fourth Proportional to 11,380.50, 17,068.93 and 8,083.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,380.50 : 17,068.93 = 8,083.60 : x
2. Step 2: Convert to fraction form
   11,380.50/17,068.93 = 8,083.60/x
3. Step 3: Cross multiply
   11,380.50x = 17,068.93 × 8,083.60
4. Step 4: Simplify right side
   11,380.50x = 137,978,339.67
5. Step 5: Solve for x
   x = 137,978,339.67/11,380.50
6. Step 6: Final answer
   x = 12,124.10