Finding the Fourth Proportional to 31,112.52, 42,928.02 and 17,682.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,112.52 : 42,928.02 = 17,682.72 : x
2. Step 2: Convert to fraction form
   31,112.52/42,928.02 = 17,682.72/x
3. Step 3: Cross multiply
   31,112.52x = 42,928.02 × 17,682.72
4. Step 4: Simplify right side
   31,112.52x = 759,084,157.81
5. Step 5: Solve for x
   x = 759,084,157.81/31,112.52
6. Step 6: Final answer
   x = 24,398.03