Finding the Fourth Proportional to 78,454.37, 108,266.39 and 42,644.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,454.37 : 108,266.39 = 42,644.27 : x
2. Step 2: Convert to fraction form
   78,454.37/108,266.39 = 42,644.27/x
3. Step 3: Cross multiply
   78,454.37x = 108,266.39 × 42,644.27
4. Step 4: Simplify right side
   78,454.37x = 4,616,940,412.53
5. Step 5: Solve for x
   x = 4,616,940,412.53/78,454.37
6. Step 6: Final answer
   x = 58,848.74