Finding the Fourth Proportional to 139,974.28, 193,164.50 and 79,545.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,974.28 : 193,164.50 = 79,545.04 : x
2. Step 2: Convert to fraction form
   139,974.28/193,164.50 = 79,545.04/x
3. Step 3: Cross multiply
   139,974.28x = 193,164.50 × 79,545.04
4. Step 4: Simplify right side
   139,974.28x = 15,365,277,147.59
5. Step 5: Solve for x
   x = 15,365,277,147.59/139,974.28
6. Step 6: Final answer
   x = 109,772.15