Finding the Fourth Proportional to 28,349.62, 39,118.32 and 17,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,349.62 : 39,118.32 = 17,016.72 : x
2. Step 2: Convert to fraction form
   28,349.62/39,118.32 = 17,016.72/x
3. Step 3: Cross multiply
   28,349.62x = 39,118.32 × 17,016.72
4. Step 4: Simplify right side
   28,349.62x = 665,665,498.31
5. Step 5: Solve for x
   x = 665,665,498.31/28,349.62
6. Step 6: Final answer
   x = 23,480.58