Finding the Fourth Proportional to 57,404.80, 79,219.32 and 31,912.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,404.80 : 79,219.32 = 31,912.72 : x
2. Step 2: Convert to fraction form
   57,404.80/79,219.32 = 31,912.72/x
3. Step 3: Cross multiply
   57,404.80x = 79,219.32 × 31,912.72
4. Step 4: Simplify right side
   57,404.80x = 2,528,103,977.75
5. Step 5: Solve for x
   x = 2,528,103,977.75/57,404.80
6. Step 6: Final answer
   x = 44,039.94