Finding the Fourth Proportional to 28,844.16, 39,802.56 and 16,272

Step by Step Solution

1. Step 1: Write the proportion equation
   28,844.16 : 39,802.56 = 16,272 : x
2. Step 2: Convert to fraction form
   28,844.16/39,802.56 = 16,272/x
3. Step 3: Cross multiply
   28,844.16x = 39,802.56 × 16,272
4. Step 4: Simplify right side
   28,844.16x = 647,667,256.32
5. Step 5: Solve for x
   x = 647,667,256.32/28,844.16
6. Step 6: Final answer
   x = 22,454.02