Finding the Fourth Proportional to 143,162.28, 197,749.86 and 108,963

Step by Step Solution

1. Step 1: Write the proportion equation
   143,162.28 : 197,749.86 = 108,963 : x
2. Step 2: Convert to fraction form
   143,162.28/197,749.86 = 108,963/x
3. Step 3: Cross multiply
   143,162.28x = 197,749.86 × 108,963
4. Step 4: Simplify right side
   143,162.28x = 21,547,417,995.18
5. Step 5: Solve for x
   x = 21,547,417,995.18/143,162.28
6. Step 6: Final answer
   x = 150,510.44