Finding the Fourth Proportional to 401,775.83, 602,644.25 and 149,105.57

Step by Step Solution

1. Step 1: Write the proportion equation
   401,775.83 : 602,644.25 = 149,105.57 : x
2. Step 2: Convert to fraction form
   401,775.83/602,644.25 = 149,105.57/x
3. Step 3: Cross multiply
   401,775.83x = 602,644.25 × 149,105.57
4. Step 4: Simplify right side
   401,775.83x = 89,857,610,644.72
5. Step 5: Solve for x
   x = 89,857,610,644.72/401,775.83
6. Step 6: Final answer
   x = 223,651.11