Finding the Fourth Proportional to 30,908.76, 42,653.56 and 17,479.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,908.76 : 42,653.56 = 17,479.56 : x
2. Step 2: Convert to fraction form
   30,908.76/42,653.56 = 17,479.56/x
3. Step 3: Cross multiply
   30,908.76x = 42,653.56 × 17,479.56
4. Step 4: Simplify right side
   30,908.76x = 745,565,461.23
5. Step 5: Solve for x
   x = 745,565,461.23/30,908.76
6. Step 6: Final answer
   x = 24,121.49