Finding the Fourth Proportional to 42,007.51, 62,979.98 and 18,310.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.51 : 62,979.98 = 18,310.56 : x
2. Step 2: Convert to fraction form
   42,007.51/62,979.98 = 18,310.56/x
3. Step 3: Cross multiply
   42,007.51x = 62,979.98 × 18,310.56
4. Step 4: Simplify right side
   42,007.51x = 1,153,198,477.86
5. Step 5: Solve for x
   x = 1,153,198,477.86/42,007.51
6. Step 6: Final answer
   x = 27,452.20