Finding the Fourth Proportional to 449,399.77, 674,092.82 and 133,856.69

Step by Step Solution

1. Step 1: Write the proportion equation
   449,399.77 : 674,092.82 = 133,856.69 : x
2. Step 2: Convert to fraction form
   449,399.77/674,092.82 = 133,856.69/x
3. Step 3: Cross multiply
   449,399.77x = 674,092.82 × 133,856.69
4. Step 4: Simplify right side
   449,399.77x = 90,231,830,602.14
5. Step 5: Solve for x
   x = 90,231,830,602.14/449,399.77
6. Step 6: Final answer
   x = 200,782.99