Finding the Fourth Proportional to 78,076.68, 107,745.69 and 42,266.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,076.68 : 107,745.69 = 42,266.68 : x
2. Step 2: Convert to fraction form
   78,076.68/107,745.69 = 42,266.68/x
3. Step 3: Cross multiply
   78,076.68x = 107,745.69 × 42,266.68
4. Step 4: Simplify right side
   78,076.68x = 4,554,052,061.88
5. Step 5: Solve for x
   x = 4,554,052,061.88/78,076.68
6. Step 6: Final answer
   x = 58,327.95