Finding the Fourth Proportional to 78,078.37, 107,747.25 and 42,267.59

Step by Step Solution

1. Step 1: Write the proportion equation
   78,078.37 : 107,747.25 = 42,267.59 : x
2. Step 2: Convert to fraction form
   78,078.37/107,747.25 = 42,267.59/x
3. Step 3: Cross multiply
   78,078.37x = 107,747.25 × 42,267.59
4. Step 4: Simplify right side
   78,078.37x = 4,554,216,586.63
5. Step 5: Solve for x
   x = 4,554,216,586.63/78,078.37
6. Step 6: Final answer
   x = 58,328.79