Finding the Fourth Proportional to 42,976.87, 64,423.38 and 18,024.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,976.87 : 64,423.38 = 18,024.42 : x
2. Step 2: Convert to fraction form
   42,976.87/64,423.38 = 18,024.42/x
3. Step 3: Cross multiply
   42,976.87x = 64,423.38 × 18,024.42
4. Step 4: Simplify right side
   42,976.87x = 1,161,194,058.94
5. Step 5: Solve for x
   x = 1,161,194,058.94/42,976.87
6. Step 6: Final answer
   x = 27,019.05