Finding the Fourth Proportional to 30,956.88, 42,726.72 and 17,528.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,956.88 : 42,726.72 = 17,528.16 : x
2. Step 2: Convert to fraction form
   30,956.88/42,726.72 = 17,528.16/x
3. Step 3: Cross multiply
   30,956.88x = 42,726.72 × 17,528.16
4. Step 4: Simplify right side
   30,956.88x = 748,920,784.44
5. Step 5: Solve for x
   x = 748,920,784.44/30,956.88
6. Step 6: Final answer
   x = 24,192.39