Finding the Fourth Proportional to 32,890.05, 49,022.42 and 31,021.79

Step by Step Solution

1. Step 1: Write the proportion equation
   32,890.05 : 49,022.42 = 31,021.79 : x
2. Step 2: Convert to fraction form
   32,890.05/49,022.42 = 31,021.79/x
3. Step 3: Cross multiply
   32,890.05x = 49,022.42 × 31,021.79
4. Step 4: Simplify right side
   32,890.05x = 1,520,762,818.31
5. Step 5: Solve for x
   x = 1,520,762,818.31/32,890.05
6. Step 6: Final answer
   x = 46,237.78