Finding the Fourth Proportional to 30,648.76, 42,294.88 and 17,036.30

Step by Step Solution

1. Step 1: Write the proportion equation
   30,648.76 : 42,294.88 = 17,036.30 : x
2. Step 2: Convert to fraction form
   30,648.76/42,294.88 = 17,036.30/x
3. Step 3: Cross multiply
   30,648.76x = 42,294.88 × 17,036.30
4. Step 4: Simplify right side
   30,648.76x = 720,548,264.14
5. Step 5: Solve for x
   x = 720,548,264.14/30,648.76
6. Step 6: Final answer
   x = 23,509.87