Finding the Fourth Proportional to 57,613.56, 86,418.72 and 31,483.77

Step by Step Solution

1. Step 1: Write the proportion equation
   57,613.56 : 86,418.72 = 31,483.77 : x
2. Step 2: Convert to fraction form
   57,613.56/86,418.72 = 31,483.77/x
3. Step 3: Cross multiply
   57,613.56x = 86,418.72 × 31,483.77
4. Step 4: Simplify right side
   57,613.56x = 2,720,787,104.17
5. Step 5: Solve for x
   x = 2,720,787,104.17/57,613.56
6. Step 6: Final answer
   x = 47,224.77