Finding the Fourth Proportional to 30,678.50, 42,335.52 and 17,250.32

Step by Step Solution

1. Step 1: Write the proportion equation
   30,678.50 : 42,335.52 = 17,250.32 : x
2. Step 2: Convert to fraction form
   30,678.50/42,335.52 = 17,250.32/x
3. Step 3: Cross multiply
   30,678.50x = 42,335.52 × 17,250.32
4. Step 4: Simplify right side
   30,678.50x = 730,301,267.37
5. Step 5: Solve for x
   x = 730,301,267.37/30,678.50
6. Step 6: Final answer
   x = 23,804.99