Finding the Fourth Proportional to 492,300.35, 738,029.31 and 188,912.22

Step by Step Solution

1. Step 1: Write the proportion equation
   492,300.35 : 738,029.31 = 188,912.22 : x
2. Step 2: Convert to fraction form
   492,300.35/738,029.31 = 188,912.22/x
3. Step 3: Cross multiply
   492,300.35x = 738,029.31 × 188,912.22
4. Step 4: Simplify right side
   492,300.35x = 139,422,755,377.17
5. Step 5: Solve for x
   x = 139,422,755,377.17/492,300.35
6. Step 6: Final answer
   x = 283,206.70