Finding the Fourth Proportional to 59,978.36, 90,021.96 and 31,922.04

Step by Step Solution

1. Step 1: Write the proportion equation
   59,978.36 : 90,021.96 = 31,922.04 : x
2. Step 2: Convert to fraction form
   59,978.36/90,021.96 = 31,922.04/x
3. Step 3: Cross multiply
   59,978.36x = 90,021.96 × 31,922.04
4. Step 4: Simplify right side
   59,978.36x = 2,873,684,608.00
5. Step 5: Solve for x
   x = 2,873,684,608.00/59,978.36
6. Step 6: Final answer
   x = 47,912.03