Finding the Fourth Proportional to 62,040.42, 85,644.81 and 39,697.38

Step by Step Solution

1. Step 1: Write the proportion equation
   62,040.42 : 85,644.81 = 39,697.38 : x
2. Step 2: Convert to fraction form
   62,040.42/85,644.81 = 39,697.38/x
3. Step 3: Cross multiply
   62,040.42x = 85,644.81 × 39,697.38
4. Step 4: Simplify right side
   62,040.42x = 3,399,874,567.60
5. Step 5: Solve for x
   x = 3,399,874,567.60/62,040.42
6. Step 6: Final answer
   x = 54,800.96