Finding the Fourth Proportional to 149,139.94, 205,813.15 and 82,071.94

Step by Step Solution

1. Step 1: Write the proportion equation
   149,139.94 : 205,813.15 = 82,071.94 : x
2. Step 2: Convert to fraction form
   149,139.94/205,813.15 = 82,071.94/x
3. Step 3: Cross multiply
   149,139.94x = 205,813.15 × 82,071.94
4. Step 4: Simplify right side
   149,139.94x = 16,891,483,778.30
5. Step 5: Solve for x
   x = 16,891,483,778.30/149,139.94
6. Step 6: Final answer
   x = 113,259.29