Finding the Fourth Proportional to 28,590.75, 42,885.72 and 17,348.76

Step by Step Solution

1. Step 1: Write the proportion equation
   28,590.75 : 42,885.72 = 17,348.76 : x
2. Step 2: Convert to fraction form
   28,590.75/42,885.72 = 17,348.76/x
3. Step 3: Cross multiply
   28,590.75x = 42,885.72 × 17,348.76
4. Step 4: Simplify right side
   28,590.75x = 744,014,063.71
5. Step 5: Solve for x
   x = 744,014,063.71/28,590.75
6. Step 6: Final answer
   x = 26,022.89