Finding the Fourth Proportional to 57,945.46, 86,483.78 and 54,162.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,945.46 : 86,483.78 = 54,162.06 : x
2. Step 2: Convert to fraction form
   57,945.46/86,483.78 = 54,162.06/x
3. Step 3: Cross multiply
   57,945.46x = 86,483.78 × 54,162.06
4. Step 4: Simplify right side
   57,945.46x = 4,684,139,681.39
5. Step 5: Solve for x
   x = 4,684,139,681.39/57,945.46
6. Step 6: Final answer
   x = 80,837.04