Finding the Fourth Proportional to 404,352.30, 606,419.10 and 120,042.30

Step by Step Solution

1. Step 1: Write the proportion equation
   404,352.30 : 606,419.10 = 120,042.30 : x
2. Step 2: Convert to fraction form
   404,352.30/606,419.10 = 120,042.30/x
3. Step 3: Cross multiply
   404,352.30x = 606,419.10 × 120,042.30
4. Step 4: Simplify right side
   404,352.30x = 72,795,943,527.93
5. Step 5: Solve for x
   x = 72,795,943,527.93/404,352.30
6. Step 6: Final answer
   x = 180,030.99