Finding the Fourth Proportional to 31,032.06, 42,828.67 and 17,421.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.06 : 42,828.67 = 17,421.54 : x
2. Step 2: Convert to fraction form
   31,032.06/42,828.67 = 17,421.54/x
3. Step 3: Cross multiply
   31,032.06x = 42,828.67 × 17,421.54
4. Step 4: Simplify right side
   31,032.06x = 746,141,387.55
5. Step 5: Solve for x
   x = 746,141,387.55/31,032.06
6. Step 6: Final answer
   x = 24,044.21