Finding the Fourth Proportional to 144,066.75, 216,101.34 and 50,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,066.75 : 216,101.34 = 50,572.50 : x
2. Step 2: Convert to fraction form
   144,066.75/216,101.34 = 50,572.50/x
3. Step 3: Cross multiply
   144,066.75x = 216,101.34 × 50,572.50
4. Step 4: Simplify right side
   144,066.75x = 10,928,785,017.15
5. Step 5: Solve for x
   x = 10,928,785,017.15/144,066.75
6. Step 6: Final answer
   x = 75,859.18