Finding the Fourth Proportional to 57,662.48, 86,395.31 and 31,320.07

Step by Step Solution

1. Step 1: Write the proportion equation
   57,662.48 : 86,395.31 = 31,320.07 : x
2. Step 2: Convert to fraction form
   57,662.48/86,395.31 = 31,320.07/x
3. Step 3: Cross multiply
   57,662.48x = 86,395.31 × 31,320.07
4. Step 4: Simplify right side
   57,662.48x = 2,705,906,901.73
5. Step 5: Solve for x
   x = 2,705,906,901.73/57,662.48
6. Step 6: Final answer
   x = 46,926.65