Finding the Fourth Proportional to 76,018.50, 114,028.16 and 20,614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,018.50 : 114,028.16 = 20,614.50 : x
2. Step 2: Convert to fraction form
   76,018.50/114,028.16 = 20,614.50/x
3. Step 3: Cross multiply
   76,018.50x = 114,028.16 × 20,614.50
4. Step 4: Simplify right side
   76,018.50x = 2,350,633,401.25
5. Step 5: Solve for x
   x = 2,350,633,401.25/76,018.50
6. Step 6: Final answer
   x = 30,921.86