Finding the Fourth Proportional to 35,501.31, 49,021.29 and 31,717.80

Step by Step Solution

1. Step 1: Write the proportion equation
   35,501.31 : 49,021.29 = 31,717.80 : x
2. Step 2: Convert to fraction form
   35,501.31/49,021.29 = 31,717.80/x
3. Step 3: Cross multiply
   35,501.31x = 49,021.29 × 31,717.80
4. Step 4: Simplify right side
   35,501.31x = 1,554,847,471.96
5. Step 5: Solve for x
   x = 1,554,847,471.96/35,501.31
6. Step 6: Final answer
   x = 43,796.90