Finding the Fourth Proportional to 292,821, 404,092.98 and 158,685

Step by Step Solution

1. Step 1: Write the proportion equation
   292,821 : 404,092.98 = 158,685 : x
2. Step 2: Convert to fraction form
   292,821/404,092.98 = 158,685/x
3. Step 3: Cross multiply
   292,821x = 404,092.98 × 158,685
4. Step 4: Simplify right side
   292,821x = 64,123,494,531.30
5. Step 5: Solve for x
   x = 64,123,494,531.30/292,821
6. Step 6: Final answer
   x = 218,985.30