Finding the Fourth Proportional to 57,779.10, 79,730.61 and 31,936.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,779.10 : 79,730.61 = 31,936.56 : x
2. Step 2: Convert to fraction form
   57,779.10/79,730.61 = 31,936.56/x
3. Step 3: Cross multiply
   57,779.10x = 79,730.61 × 31,936.56
4. Step 4: Simplify right side
   57,779.10x = 2,546,320,991.35
5. Step 5: Solve for x
   x = 2,546,320,991.35/57,779.10
6. Step 6: Final answer
   x = 44,069.93