Finding the Fourth Proportional to 78,008.37, 107,651.43 and 42,198.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,008.37 : 107,651.43 = 42,198.27 : x
2. Step 2: Convert to fraction form
   78,008.37/107,651.43 = 42,198.27/x
3. Step 3: Cross multiply
   78,008.37x = 107,651.43 × 42,198.27
4. Step 4: Simplify right side
   78,008.37x = 4,542,704,109.03
5. Step 5: Solve for x
   x = 4,542,704,109.03/78,008.37
6. Step 6: Final answer
   x = 58,233.55