Finding the Fourth Proportional to 404,146.82, 606,282.50 and 137,845.11

Step by Step Solution

1. Step 1: Write the proportion equation
   404,146.82 : 606,282.50 = 137,845.11 : x
2. Step 2: Convert to fraction form
   404,146.82/606,282.50 = 137,845.11/x
3. Step 3: Cross multiply
   404,146.82x = 606,282.50 × 137,845.11
4. Step 4: Simplify right side
   404,146.82x = 83,573,080,521.75
5. Step 5: Solve for x
   x = 83,573,080,521.75/404,146.82
6. Step 6: Final answer
   x = 206,788.91