Finding the Fourth Proportional to 404,580.42, 606,772.22 and 191,339.72

Step by Step Solution

1. Step 1: Write the proportion equation
   404,580.42 : 606,772.22 = 191,339.72 : x
2. Step 2: Convert to fraction form
   404,580.42/606,772.22 = 191,339.72/x
3. Step 3: Cross multiply
   404,580.42x = 606,772.22 × 191,339.72
4. Step 4: Simplify right side
   404,580.42x = 116,099,624,963.42
5. Step 5: Solve for x
   x = 116,099,624,963.42/404,580.42
6. Step 6: Final answer
   x = 286,963.03