Finding the Fourth Proportional to 31,490.14, 43,456.17 and 17,342.90

Step by Step Solution

1. Step 1: Write the proportion equation
   31,490.14 : 43,456.17 = 17,342.90 : x
2. Step 2: Convert to fraction form
   31,490.14/43,456.17 = 17,342.90/x
3. Step 3: Cross multiply
   31,490.14x = 43,456.17 × 17,342.90
4. Step 4: Simplify right side
   31,490.14x = 753,656,010.69
5. Step 5: Solve for x
   x = 753,656,010.69/31,490.14
6. Step 6: Final answer
   x = 23,933.08