Finding the Fourth Proportional to 57,614.05, 86,286.79 and 55,618.57

Step by Step Solution

1. Step 1: Write the proportion equation
   57,614.05 : 86,286.79 = 55,618.57 : x
2. Step 2: Convert to fraction form
   57,614.05/86,286.79 = 55,618.57/x
3. Step 3: Cross multiply
   57,614.05x = 86,286.79 × 55,618.57
4. Step 4: Simplify right side
   57,614.05x = 4,799,147,869.69
5. Step 5: Solve for x
   x = 4,799,147,869.69/57,614.05
6. Step 6: Final answer
   x = 83,298.22