Finding the Fourth Proportional to 139,233.38, 192,096.33 and 78,798.02

Step by Step Solution

1. Step 1: Write the proportion equation
   139,233.38 : 192,096.33 = 78,798.02 : x
2. Step 2: Convert to fraction form
   139,233.38/192,096.33 = 78,798.02/x
3. Step 3: Cross multiply
   139,233.38x = 192,096.33 × 78,798.02
4. Step 4: Simplify right side
   139,233.38x = 15,136,810,453.27
5. Step 5: Solve for x
   x = 15,136,810,453.27/139,233.38
6. Step 6: Final answer
   x = 108,715.38