Finding the Fourth Proportional to 139,729.50, 192,826.71 and 76,063.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,729.50 : 192,826.71 = 76,063.50 : x
2. Step 2: Convert to fraction form
   139,729.50/192,826.71 = 76,063.50/x
3. Step 3: Cross multiply
   139,729.50x = 192,826.71 × 76,063.50
4. Step 4: Simplify right side
   139,729.50x = 14,667,074,456.09
5. Step 5: Solve for x
   x = 14,667,074,456.09/139,729.50
6. Step 6: Final answer
   x = 104,967.63