Finding the Fourth Proportional to 139,743.72, 192,846.33 and 76,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,743.72 : 192,846.33 = 76,081.50 : x
2. Step 2: Convert to fraction form
   139,743.72/192,846.33 = 76,081.50/x
3. Step 3: Cross multiply
   139,743.72x = 192,846.33 × 76,081.50
4. Step 4: Simplify right side
   139,743.72x = 14,672,038,055.90
5. Step 5: Solve for x
   x = 14,672,038,055.90/139,743.72
6. Step 6: Final answer
   x = 104,992.47