Finding the Fourth Proportional to 139,624.96, 192,665.60 and 79,191.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,624.96 : 192,665.60 = 79,191.04 : x
2. Step 2: Convert to fraction form
   139,624.96/192,665.60 = 79,191.04/x
3. Step 3: Cross multiply
   139,624.96x = 192,665.60 × 79,191.04
4. Step 4: Simplify right side
   139,624.96x = 15,257,389,236.22
5. Step 5: Solve for x
   x = 15,257,389,236.22/139,624.96
6. Step 6: Final answer
   x = 109,274.08