Finding the Fourth Proportional to 57,515.42, 86,281.83 and 18,068.82

Step by Step Solution

1. Step 1: Write the proportion equation
   57,515.42 : 86,281.83 = 18,068.82 : x
2. Step 2: Convert to fraction form
   57,515.42/86,281.83 = 18,068.82/x
3. Step 3: Cross multiply
   57,515.42x = 86,281.83 × 18,068.82
4. Step 4: Simplify right side
   57,515.42x = 1,559,010,855.54
5. Step 5: Solve for x
   x = 1,559,010,855.54/57,515.42
6. Step 6: Final answer
   x = 27,105.96