Finding the Fourth Proportional to 57,007.69, 85,195.94 and 42,045.27

Step by Step Solution

1. Step 1: Write the proportion equation
   57,007.69 : 85,195.94 = 42,045.27 : x
2. Step 2: Convert to fraction form
   57,007.69/85,195.94 = 42,045.27/x
3. Step 3: Cross multiply
   57,007.69x = 85,195.94 × 42,045.27
4. Step 4: Simplify right side
   57,007.69x = 3,582,086,408.08
5. Step 5: Solve for x
   x = 3,582,086,408.08/57,007.69
6. Step 6: Final answer
   x = 62,835.14