Finding the Fourth Proportional to 31,490.18, 47,133.21 and 23,168.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,490.18 : 47,133.21 = 23,168.42 : x
2. Step 2: Convert to fraction form
   31,490.18/47,133.21 = 23,168.42/x
3. Step 3: Cross multiply
   31,490.18x = 47,133.21 × 23,168.42
4. Step 4: Simplify right side
   31,490.18x = 1,092,002,005.23
5. Step 5: Solve for x
   x = 1,092,002,005.23/31,490.18
6. Step 6: Final answer
   x = 34,677.54