Finding the Fourth Proportional to 143,562.72, 215,107.10 and 83,422.36

Step by Step Solution

1. Step 1: Write the proportion equation
   143,562.72 : 215,107.10 = 83,422.36 : x
2. Step 2: Convert to fraction form
   143,562.72/215,107.10 = 83,422.36/x
3. Step 3: Cross multiply
   143,562.72x = 215,107.10 × 83,422.36
4. Step 4: Simplify right side
   143,562.72x = 17,944,741,934.76
5. Step 5: Solve for x
   x = 17,944,741,934.76/143,562.72
6. Step 6: Final answer
   x = 124,995.83