Finding the Fourth Proportional to 149,142.72, 205,816.99 and 82,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   149,142.72 : 205,816.99 = 82,074.72 : x
2. Step 2: Convert to fraction form
   149,142.72/205,816.99 = 82,074.72/x
3. Step 3: Cross multiply
   149,142.72x = 205,816.99 × 82,074.72
4. Step 4: Simplify right side
   149,142.72x = 16,892,371,825.49
5. Step 5: Solve for x
   x = 16,892,371,825.49/149,142.72
6. Step 6: Final answer
   x = 113,263.13