Finding the Fourth Proportional to 435,903.91, 601,815.78 and 345,624.55

Step by Step Solution

1. Step 1: Write the proportion equation
   435,903.91 : 601,815.78 = 345,624.55 : x
2. Step 2: Convert to fraction form
   435,903.91/601,815.78 = 345,624.55/x
3. Step 3: Cross multiply
   435,903.91x = 601,815.78 × 345,624.55
4. Step 4: Simplify right side
   435,903.91x = 208,002,308,145.40
5. Step 5: Solve for x
   x = 208,002,308,145.40/435,903.91
6. Step 6: Final answer
   x = 477,174.68