Finding the Fourth Proportional to 84,216.42, 126,324.54 and 42,663.42

Step by Step Solution

1. Step 1: Write the proportion equation
   84,216.42 : 126,324.54 = 42,663.42 : x
2. Step 2: Convert to fraction form
   84,216.42/126,324.54 = 42,663.42/x
3. Step 3: Cross multiply
   84,216.42x = 126,324.54 × 42,663.42
4. Step 4: Simplify right side
   84,216.42x = 5,389,436,906.33
5. Step 5: Solve for x
   x = 5,389,436,906.33/84,216.42
6. Step 6: Final answer
   x = 63,995.08