Finding the Fourth Proportional to 31,128.32, 42,956.16 and 17,701.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,128.32 : 42,956.16 = 17,701.04 : x
2. Step 2: Convert to fraction form
   31,128.32/42,956.16 = 17,701.04/x
3. Step 3: Cross multiply
   31,128.32x = 42,956.16 × 17,701.04
4. Step 4: Simplify right side
   31,128.32x = 760,368,706.41
5. Step 5: Solve for x
   x = 760,368,706.41/31,128.32
6. Step 6: Final answer
   x = 24,426.91