Finding the Fourth Proportional to 16,014.72, 22,115.52 and 15,142.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,014.72 : 22,115.52 = 15,142.08 : x
2. Step 2: Convert to fraction form
   16,014.72/22,115.52 = 15,142.08/x
3. Step 3: Cross multiply
   16,014.72x = 22,115.52 × 15,142.08
4. Step 4: Simplify right side
   16,014.72x = 334,874,973.08
5. Step 5: Solve for x
   x = 334,874,973.08/16,014.72
6. Step 6: Final answer
   x = 20,910.45