Finding the Fourth Proportional to 404,143.01, 606,214.42 and 137,903.51

Step by Step Solution

1. Step 1: Write the proportion equation
   404,143.01 : 606,214.42 = 137,903.51 : x
2. Step 2: Convert to fraction form
   404,143.01/606,214.42 = 137,903.51/x
3. Step 3: Cross multiply
   404,143.01x = 606,214.42 × 137,903.51
4. Step 4: Simplify right side
   404,143.01x = 83,599,092,954.78
5. Step 5: Solve for x
   x = 83,599,092,954.78/404,143.01
6. Step 6: Final answer
   x = 206,855.22