Finding the Fourth Proportional to 53,662.61, 74,057.85 and 31,002.54

Step by Step Solution

1. Step 1: Write the proportion equation
   53,662.61 : 74,057.85 = 31,002.54 : x
2. Step 2: Convert to fraction form
   53,662.61/74,057.85 = 31,002.54/x
3. Step 3: Cross multiply
   53,662.61x = 74,057.85 × 31,002.54
4. Step 4: Simplify right side
   53,662.61x = 2,295,981,456.94
5. Step 5: Solve for x
   x = 2,295,981,456.94/53,662.61
6. Step 6: Final answer
   x = 42,785.50