Finding the Fourth Proportional to 15,987.09, 22,061.37 and 8,912.14

Step by Step Solution

1. Step 1: Write the proportion equation
   15,987.09 : 22,061.37 = 8,912.14 : x
2. Step 2: Convert to fraction form
   15,987.09/22,061.37 = 8,912.14/x
3. Step 3: Cross multiply
   15,987.09x = 22,061.37 × 8,912.14
4. Step 4: Simplify right side
   15,987.09x = 196,614,018.03
5. Step 5: Solve for x
   x = 196,614,018.03/15,987.09
6. Step 6: Final answer
   x = 12,298.30