Finding the Fourth Proportional to 139,743.91, 192,846.68 and 76,081.96

Step by Step Solution

1. Step 1: Write the proportion equation
   139,743.91 : 192,846.68 = 76,081.96 : x
2. Step 2: Convert to fraction form
   139,743.91/192,846.68 = 76,081.96/x
3. Step 3: Cross multiply
   139,743.91x = 192,846.68 × 76,081.96
4. Step 4: Simplify right side
   139,743.91x = 14,672,153,393.89
5. Step 5: Solve for x
   x = 14,672,153,393.89/139,743.91
6. Step 6: Final answer
   x = 104,993.15