Finding the Fourth Proportional to 57,499.56, 86,243.67 and 18,055.62

Step by Step Solution

1. Step 1: Write the proportion equation
   57,499.56 : 86,243.67 = 18,055.62 : x
2. Step 2: Convert to fraction form
   57,499.56/86,243.67 = 18,055.62/x
3. Step 3: Cross multiply
   57,499.56x = 86,243.67 × 18,055.62
4. Step 4: Simplify right side
   57,499.56x = 1,557,182,932.93
5. Step 5: Solve for x
   x = 1,557,182,932.93/57,499.56
6. Step 6: Final answer
   x = 27,081.65