Finding the Fourth Proportional to 15,986.13, 22,061.37 and 8,816.34

Step by Step Solution

1. Step 1: Write the proportion equation
   15,986.13 : 22,061.37 = 8,816.34 : x
2. Step 2: Convert to fraction form
   15,986.13/22,061.37 = 8,816.34/x
3. Step 3: Cross multiply
   15,986.13x = 22,061.37 × 8,816.34
4. Step 4: Simplify right side
   15,986.13x = 194,500,538.79
5. Step 5: Solve for x
   x = 194,500,538.79/15,986.13
6. Step 6: Final answer
   x = 12,166.83