Finding the Fourth Proportional to 139,480.84, 192,477.24 and 79,047.96

Step by Step Solution

1. Step 1: Write the proportion equation
   139,480.84 : 192,477.24 = 79,047.96 : x
2. Step 2: Convert to fraction form
   139,480.84/192,477.24 = 79,047.96/x
3. Step 3: Cross multiply
   139,480.84x = 192,477.24 × 79,047.96
4. Step 4: Simplify right side
   139,480.84x = 15,214,933,168.43
5. Step 5: Solve for x
   x = 15,214,933,168.43/139,480.84
6. Step 6: Final answer
   x = 109,082.60