Finding the Fourth Proportional to 404,870.90, 559,095.09 and 271,123.70

Step by Step Solution

1. Step 1: Write the proportion equation
   404,870.90 : 559,095.09 = 271,123.70 : x
2. Step 2: Convert to fraction form
   404,870.90/559,095.09 = 271,123.70/x
3. Step 3: Cross multiply
   404,870.90x = 559,095.09 × 271,123.70
4. Step 4: Simplify right side
   404,870.90x = 151,583,929,452.63
5. Step 5: Solve for x
   x = 151,583,929,452.63/404,870.90
6. Step 6: Final answer
   x = 374,400.65