Finding the Fourth Proportional to 606,597.57, 910,003.37 and 207,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   606,597.57 : 910,003.37 = 207,144.72 : x
2. Step 2: Convert to fraction form
   606,597.57/910,003.37 = 207,144.72/x
3. Step 3: Cross multiply
   606,597.57x = 910,003.37 × 207,144.72
4. Step 4: Simplify right side
   606,597.57x = 188,502,392,241.98
5. Step 5: Solve for x
   x = 188,502,392,241.98/606,597.57
6. Step 6: Final answer
   x = 310,753.62