Finding the Fourth Proportional to 57,945.96, 86,484.53 and 54,162.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,945.96 : 86,484.53 = 54,162.56 : x
2. Step 2: Convert to fraction form
   57,945.96/86,484.53 = 54,162.56/x
3. Step 3: Cross multiply
   57,945.96x = 86,484.53 × 54,162.56
4. Step 4: Simplify right side
   57,945.96x = 4,684,223,274.38
5. Step 5: Solve for x
   x = 4,684,223,274.38/57,945.96
6. Step 6: Final answer
   x = 80,837.79