Finding the Fourth Proportional to 56,943.12, 78,579 and 31,792.08

Step by Step Solution

1. Step 1: Write the proportion equation
   56,943.12 : 78,579 = 31,792.08 : x
2. Step 2: Convert to fraction form
   56,943.12/78,579 = 31,792.08/x
3. Step 3: Cross multiply
   56,943.12x = 78,579 × 31,792.08
4. Step 4: Simplify right side
   56,943.12x = 2,498,189,854.32
5. Step 5: Solve for x
   x = 2,498,189,854.32/56,943.12
6. Step 6: Final answer
   x = 43,871.67