Finding the Fourth Proportional to 262,477.72, 362,216.10 and 149,300.20

Step by Step Solution

1. Step 1: Write the proportion equation
   262,477.72 : 362,216.10 = 149,300.20 : x
2. Step 2: Convert to fraction form
   262,477.72/362,216.10 = 149,300.20/x
3. Step 3: Cross multiply
   262,477.72x = 362,216.10 × 149,300.20
4. Step 4: Simplify right side
   262,477.72x = 54,078,936,173.22
5. Step 5: Solve for x
   x = 54,078,936,173.22/262,477.72
6. Step 6: Final answer
   x = 206,032.48