Finding the Fourth Proportional to 665,105.40, 997,805.52 and 191,753.82

Step by Step Solution

1. Step 1: Write the proportion equation
   665,105.40 : 997,805.52 = 191,753.82 : x
2. Step 2: Convert to fraction form
   665,105.40/997,805.52 = 191,753.82/x
3. Step 3: Cross multiply
   665,105.40x = 997,805.52 × 191,753.82
4. Step 4: Simplify right side
   665,105.40x = 191,333,020,077.09
5. Step 5: Solve for x
   x = 191,333,020,077.09/665,105.40
6. Step 6: Final answer
   x = 287,673.23