Finding the Fourth Proportional to 57,080.36, 78,769.72 and 31,586.71

Step by Step Solution

1. Step 1: Write the proportion equation
   57,080.36 : 78,769.72 = 31,586.71 : x
2. Step 2: Convert to fraction form
   57,080.36/78,769.72 = 31,586.71/x
3. Step 3: Cross multiply
   57,080.36x = 78,769.72 × 31,586.71
4. Step 4: Simplify right side
   57,080.36x = 2,488,076,481.04
5. Step 5: Solve for x
   x = 2,488,076,481.04/57,080.36
6. Step 6: Final answer
   x = 43,589.01