Finding the Fourth Proportional to 28,016.49, 38,647.72 and 17,934.08

Step by Step Solution

1. Step 1: Write the proportion equation
   28,016.49 : 38,647.72 = 17,934.08 : x
2. Step 2: Convert to fraction form
   28,016.49/38,647.72 = 17,934.08/x
3. Step 3: Cross multiply
   28,016.49x = 38,647.72 × 17,934.08
4. Step 4: Simplify right side
   28,016.49x = 693,111,302.30
5. Step 5: Solve for x
   x = 693,111,302.30/28,016.49
6. Step 6: Final answer
   x = 24,739.41