Finding the Fourth Proportional to 149,555, 206,390.22 and 82,491.32

Step by Step Solution

1. Step 1: Write the proportion equation
   149,555 : 206,390.22 = 82,491.32 : x
2. Step 2: Convert to fraction form
   149,555/206,390.22 = 82,491.32/x
3. Step 3: Cross multiply
   149,555x = 206,390.22 × 82,491.32
4. Step 4: Simplify right side
   149,555x = 17,025,401,682.89
5. Step 5: Solve for x
   x = 17,025,401,682.89/149,555
6. Step 6: Final answer
   x = 113,840.40