Finding the Fourth Proportional to 78,076.66, 107,745.83 and 42,266.67

Step by Step Solution

1. Step 1: Write the proportion equation
   78,076.66 : 107,745.83 = 42,266.67 : x
2. Step 2: Convert to fraction form
   78,076.66/107,745.83 = 42,266.67/x
3. Step 3: Cross multiply
   78,076.66x = 107,745.83 × 42,266.67
4. Step 4: Simplify right side
   78,076.66x = 4,554,057,529.43
5. Step 5: Solve for x
   x = 4,554,057,529.43/78,076.66
6. Step 6: Final answer
   x = 58,328.03