Finding the Fourth Proportional to 13,847.33, 20,737.89 and 7,986.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,847.33 : 20,737.89 = 7,986.17 : x
2. Step 2: Convert to fraction form
   13,847.33/20,737.89 = 7,986.17/x
3. Step 3: Cross multiply
   13,847.33x = 20,737.89 × 7,986.17
4. Step 4: Simplify right side
   13,847.33x = 165,616,366.83
5. Step 5: Solve for x
   x = 165,616,366.83/13,847.33
6. Step 6: Final answer
   x = 11,960.16