Finding the Fourth Proportional to 139,846.01, 192,993.39 and 76,187.30

Step by Step Solution

1. Step 1: Write the proportion equation
   139,846.01 : 192,993.39 = 76,187.30 : x
2. Step 2: Convert to fraction form
   139,846.01/192,993.39 = 76,187.30/x
3. Step 3: Cross multiply
   139,846.01x = 192,993.39 × 76,187.30
4. Step 4: Simplify right side
   139,846.01x = 14,703,644,336.98
5. Step 5: Solve for x
   x = 14,703,644,336.98/139,846.01
6. Step 6: Final answer
   x = 105,141.68