Finding the Fourth Proportional to 405,441.42, 559,597.98 and 235,773.42

Step by Step Solution

1. Step 1: Write the proportion equation
   405,441.42 : 559,597.98 = 235,773.42 : x
2. Step 2: Convert to fraction form
   405,441.42/559,597.98 = 235,773.42/x
3. Step 3: Cross multiply
   405,441.42x = 559,597.98 × 235,773.42
4. Step 4: Simplify right side
   405,441.42x = 131,938,329,569.69
5. Step 5: Solve for x
   x = 131,938,329,569.69/405,441.42
6. Step 6: Final answer
   x = 325,418.97