Finding the Fourth Proportional to 28,590.29, 39,454.61 and 17,412.29

Step by Step Solution

1. Step 1: Write the proportion equation
   28,590.29 : 39,454.61 = 17,412.29 : x
2. Step 2: Convert to fraction form
   28,590.29/39,454.61 = 17,412.29/x
3. Step 3: Cross multiply
   28,590.29x = 39,454.61 × 17,412.29
4. Step 4: Simplify right side
   28,590.29x = 686,994,826.82
5. Step 5: Solve for x
   x = 686,994,826.82/28,590.29
6. Step 6: Final answer
   x = 24,028.96