Finding the Fourth Proportional to 11,693.32, 16,117.82 and 9,136.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,693.32 : 16,117.82 = 9,136.61 : x
2. Step 2: Convert to fraction form
   11,693.32/16,117.82 = 9,136.61/x
3. Step 3: Cross multiply
   11,693.32x = 16,117.82 × 9,136.61
4. Step 4: Simplify right side
   11,693.32x = 147,262,180.74
5. Step 5: Solve for x
   x = 147,262,180.74/11,693.32
6. Step 6: Final answer
   x = 12,593.70