Finding the Fourth Proportional to 404,618.18, 606,733.34 and 191,208.42

Step by Step Solution

1. Step 1: Write the proportion equation
   404,618.18 : 606,733.34 = 191,208.42 : x
2. Step 2: Convert to fraction form
   404,618.18/606,733.34 = 191,208.42/x
3. Step 3: Cross multiply
   404,618.18x = 606,733.34 × 191,208.42
4. Step 4: Simplify right side
   404,618.18x = 116,012,522,346.68
5. Step 5: Solve for x
   x = 116,012,522,346.68/404,618.18
6. Step 6: Final answer
   x = 286,720.99