Finding the Fourth Proportional to 31,271.02, 43,153.62 and 17,123.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,271.02 : 43,153.62 = 17,123.56 : x
2. Step 2: Convert to fraction form
   31,271.02/43,153.62 = 17,123.56/x
3. Step 3: Cross multiply
   31,271.02x = 43,153.62 × 17,123.56
4. Step 4: Simplify right side
   31,271.02x = 738,943,601.29
5. Step 5: Solve for x
   x = 738,943,601.29/31,271.02
6. Step 6: Final answer
   x = 23,630.30