Finding the Fourth Proportional to 31,485.52, 43,445.40 and 17,871.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,485.52 : 43,445.40 = 17,871.46 : x
2. Step 2: Convert to fraction form
   31,485.52/43,445.40 = 17,871.46/x
3. Step 3: Cross multiply
   31,485.52x = 43,445.40 × 17,871.46
4. Step 4: Simplify right side
   31,485.52x = 776,432,728.28
5. Step 5: Solve for x
   x = 776,432,728.28/31,485.52
6. Step 6: Final answer
   x = 24,659.99