Finding the Fourth Proportional to 22,473.72, 31,016.12 and 13,981.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,473.72 : 31,016.12 = 13,981.28 : x
2. Step 2: Convert to fraction form
   22,473.72/31,016.12 = 13,981.28/x
3. Step 3: Cross multiply
   22,473.72x = 31,016.12 × 13,981.28
4. Step 4: Simplify right side
   22,473.72x = 433,644,833.25
5. Step 5: Solve for x
   x = 433,644,833.25/22,473.72
6. Step 6: Final answer
   x = 19,295.64