Finding the Fourth Proportional to 146,983.72, 202,838.34 and 86,557

Step by Step Solution

1. Step 1: Write the proportion equation
   146,983.72 : 202,838.34 = 86,557 : x
2. Step 2: Convert to fraction form
   146,983.72/202,838.34 = 86,557/x
3. Step 3: Cross multiply
   146,983.72x = 202,838.34 × 86,557
4. Step 4: Simplify right side
   146,983.72x = 17,557,078,195.38
5. Step 5: Solve for x
   x = 17,557,078,195.38/146,983.72
6. Step 6: Final answer
   x = 119,449.13