Finding the Fourth Proportional to 139,766.24, 192,882.24 and 76,105.12

Step by Step Solution

1. Step 1: Write the proportion equation
   139,766.24 : 192,882.24 = 76,105.12 : x
2. Step 2: Convert to fraction form
   139,766.24/192,882.24 = 76,105.12/x
3. Step 3: Cross multiply
   139,766.24x = 192,882.24 × 76,105.12
4. Step 4: Simplify right side
   139,766.24x = 14,679,326,021.07
5. Step 5: Solve for x
   x = 14,679,326,021.07/139,766.24
6. Step 6: Final answer
   x = 105,027.69