Finding the Fourth Proportional to 404,562.12, 606,632.02 and 120,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,562.12 : 606,632.02 = 120,213.50 : x
2. Step 2: Convert to fraction form
   404,562.12/606,632.02 = 120,213.50/x
3. Step 3: Cross multiply
   404,562.12x = 606,632.02 × 120,213.50
4. Step 4: Simplify right side
   404,562.12x = 72,925,358,336.27
5. Step 5: Solve for x
   x = 72,925,358,336.27/404,562.12
6. Step 6: Final answer
   x = 180,257.50