Finding the Fourth Proportional to 57,494.81, 86,139.61 and 31,182.77

Step by Step Solution

1. Step 1: Write the proportion equation
   57,494.81 : 86,139.61 = 31,182.77 : x
2. Step 2: Convert to fraction form
   57,494.81/86,139.61 = 31,182.77/x
3. Step 3: Cross multiply
   57,494.81x = 86,139.61 × 31,182.77
4. Step 4: Simplify right side
   57,494.81x = 2,686,071,646.52
5. Step 5: Solve for x
   x = 2,686,071,646.52/57,494.81
6. Step 6: Final answer
   x = 46,718.51