Finding the Fourth Proportional to 31,288.88, 43,177.76 and 17,141.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,288.88 : 43,177.76 = 17,141.42 : x
2. Step 2: Convert to fraction form
   31,288.88/43,177.76 = 17,141.42/x
3. Step 3: Cross multiply
   31,288.88x = 43,177.76 × 17,141.42
4. Step 4: Simplify right side
   31,288.88x = 740,128,205.34
5. Step 5: Solve for x
   x = 740,128,205.34/31,288.88
6. Step 6: Final answer
   x = 23,654.67