Finding the Fourth Proportional to 404,465.94, 606,776.94 and 155,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,465.94 : 606,776.94 = 155,128.50 : x
2. Step 2: Convert to fraction form
   404,465.94/606,776.94 = 155,128.50/x
3. Step 3: Cross multiply
   404,465.94x = 606,776.94 × 155,128.50
4. Step 4: Simplify right side
   404,465.94x = 94,128,396,536.79
5. Step 5: Solve for x
   x = 94,128,396,536.79/404,465.94
6. Step 6: Final answer
   x = 232,722.68