Finding the Fourth Proportional to 404,521.05, 606,355.02 and 134,577.08

Step by Step Solution

1. Step 1: Write the proportion equation
   404,521.05 : 606,355.02 = 134,577.08 : x
2. Step 2: Convert to fraction form
   404,521.05/606,355.02 = 134,577.08/x
3. Step 3: Cross multiply
   404,521.05x = 606,355.02 × 134,577.08
4. Step 4: Simplify right side
   404,521.05x = 81,601,489,550.83
5. Step 5: Solve for x
   x = 81,601,489,550.83/404,521.05
6. Step 6: Final answer
   x = 201,723.72