Finding the Fourth Proportional to 78,077.37, 107,745.87 and 42,266.59

Step by Step Solution

1. Step 1: Write the proportion equation
   78,077.37 : 107,745.87 = 42,266.59 : x
2. Step 2: Convert to fraction form
   78,077.37/107,745.87 = 42,266.59/x
3. Step 3: Cross multiply
   78,077.37x = 107,745.87 × 42,266.59
4. Step 4: Simplify right side
   78,077.37x = 4,554,050,511.48
5. Step 5: Solve for x
   x = 4,554,050,511.48/78,077.37
6. Step 6: Final answer
   x = 58,327.41