Finding the Fourth Proportional to 15,012.72, 22,489.89 and 8,072.64

Step by Step Solution

1. Step 1: Write the proportion equation
   15,012.72 : 22,489.89 = 8,072.64 : x
2. Step 2: Convert to fraction form
   15,012.72/22,489.89 = 8,072.64/x
3. Step 3: Cross multiply
   15,012.72x = 22,489.89 × 8,072.64
4. Step 4: Simplify right side
   15,012.72x = 181,552,785.61
5. Step 5: Solve for x
   x = 181,552,785.61/15,012.72
6. Step 6: Final answer
   x = 12,093.26