Finding the Fourth Proportional to 715,576.50, 1,073,200.71 and 427,469.32

Step by Step Solution

1. Step 1: Write the proportion equation
   715,576.50 : 1,073,200.71 = 427,469.32 : x
2. Step 2: Convert to fraction form
   715,576.50/1,073,200.71 = 427,469.32/x
3. Step 3: Cross multiply
   715,576.50x = 1,073,200.71 × 427,469.32
4. Step 4: Simplify right side
   715,576.50x = 458,760,377,727.22
5. Step 5: Solve for x
   x = 458,760,377,727.22/715,576.50
6. Step 6: Final answer
   x = 641,105.99