Finding the Fourth Proportional to 139,662.72, 192,732.68 and 76,000.37

Step by Step Solution

1. Step 1: Write the proportion equation
   139,662.72 : 192,732.68 = 76,000.37 : x
2. Step 2: Convert to fraction form
   139,662.72/192,732.68 = 76,000.37/x
3. Step 3: Cross multiply
   139,662.72x = 192,732.68 × 76,000.37
4. Step 4: Simplify right side
   139,662.72x = 14,647,753,647.43
5. Step 5: Solve for x
   x = 14,647,753,647.43/139,662.72
6. Step 6: Final answer
   x = 104,879.48