Finding the Fourth Proportional to 57,513.94, 79,371 and 31,321.69

Step by Step Solution

1. Step 1: Write the proportion equation
   57,513.94 : 79,371 = 31,321.69 : x
2. Step 2: Convert to fraction form
   57,513.94/79,371 = 31,321.69/x
3. Step 3: Cross multiply
   57,513.94x = 79,371 × 31,321.69
4. Step 4: Simplify right side
   57,513.94x = 2,486,033,658.56
5. Step 5: Solve for x
   x = 2,486,033,658.56/57,513.94
6. Step 6: Final answer
   x = 43,224.89