Finding the Fourth Proportional to 31,233.04, 43,105.01 and 19,912.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,233.04 : 43,105.01 = 19,912.88 : x
2. Step 2: Convert to fraction form
   31,233.04/43,105.01 = 19,912.88/x
3. Step 3: Cross multiply
   31,233.04x = 43,105.01 × 19,912.88
4. Step 4: Simplify right side
   31,233.04x = 858,344,899.73
5. Step 5: Solve for x
   x = 858,344,899.73/31,233.04
6. Step 6: Final answer
   x = 27,481.95