Finding the Fourth Proportional to 28,556.04, 42,787.98 and 17,589

Step by Step Solution

1. Step 1: Write the proportion equation
   28,556.04 : 42,787.98 = 17,589 : x
2. Step 2: Convert to fraction form
   28,556.04/42,787.98 = 17,589/x
3. Step 3: Cross multiply
   28,556.04x = 42,787.98 × 17,589
4. Step 4: Simplify right side
   28,556.04x = 752,597,780.22
5. Step 5: Solve for x
   x = 752,597,780.22/28,556.04
6. Step 6: Final answer
   x = 26,355.12