Finding the Fourth Proportional to 149,141.72, 205,815.61 and 82,073.72

Step by Step Solution

1. Step 1: Write the proportion equation
   149,141.72 : 205,815.61 = 82,073.72 : x
2. Step 2: Convert to fraction form
   149,141.72/205,815.61 = 82,073.72/x
3. Step 3: Cross multiply
   149,141.72x = 205,815.61 × 82,073.72
4. Step 4: Simplify right side
   149,141.72x = 16,892,052,130.43
5. Step 5: Solve for x
   x = 16,892,052,130.43/149,141.72
6. Step 6: Final answer
   x = 113,261.75