Finding the Fourth Proportional to 57,824.68, 86,756.72 and 31,173.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,824.68 : 86,756.72 = 31,173.25 : x
2. Step 2: Convert to fraction form
   57,824.68/86,756.72 = 31,173.25/x
3. Step 3: Cross multiply
   57,824.68x = 86,756.72 × 31,173.25
4. Step 4: Simplify right side
   57,824.68x = 2,704,488,921.74
5. Step 5: Solve for x
   x = 2,704,488,921.74/57,824.68
6. Step 6: Final answer
   x = 46,770.50