Finding the Fourth Proportional to 28,339.83, 42,460.61 and 17,223.17

Step by Step Solution

1. Step 1: Write the proportion equation
   28,339.83 : 42,460.61 = 17,223.17 : x
2. Step 2: Convert to fraction form
   28,339.83/42,460.61 = 17,223.17/x
3. Step 3: Cross multiply
   28,339.83x = 42,460.61 × 17,223.17
4. Step 4: Simplify right side
   28,339.83x = 731,306,005.91
5. Step 5: Solve for x
   x = 731,306,005.91/28,339.83
6. Step 6: Final answer
   x = 25,804.88