Finding the Fourth Proportional to 84,568.02, 126,695.43 and 42,398.88

Step by Step Solution

1. Step 1: Write the proportion equation
   84,568.02 : 126,695.43 = 42,398.88 : x
2. Step 2: Convert to fraction form
   84,568.02/126,695.43 = 42,398.88/x
3. Step 3: Cross multiply
   84,568.02x = 126,695.43 × 42,398.88
4. Step 4: Simplify right side
   84,568.02x = 5,371,744,333.12
5. Step 5: Solve for x
   x = 5,371,744,333.12/84,568.02
6. Step 6: Final answer
   x = 63,519.81