Finding the Fourth Proportional to 139,758.69, 192,865.08 and 76,096.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,758.69 : 192,865.08 = 76,096.50 : x
2. Step 2: Convert to fraction form
   139,758.69/192,865.08 = 76,096.50/x
3. Step 3: Cross multiply
   139,758.69x = 192,865.08 × 76,096.50
4. Step 4: Simplify right side
   139,758.69x = 14,676,357,560.22
5. Step 5: Solve for x
   x = 14,676,357,560.22/139,758.69
6. Step 6: Final answer
   x = 105,012.13