Finding the Fourth Proportional to 143,976.28, 215,966.34 and 50,484.76

Step by Step Solution

1. Step 1: Write the proportion equation
   143,976.28 : 215,966.34 = 50,484.76 : x
2. Step 2: Convert to fraction form
   143,976.28/215,966.34 = 50,484.76/x
3. Step 3: Cross multiply
   143,976.28x = 215,966.34 × 50,484.76
4. Step 4: Simplify right side
   143,976.28x = 10,903,008,842.98
5. Step 5: Solve for x
   x = 10,903,008,842.98/143,976.28
6. Step 6: Final answer
   x = 75,727.81