Finding the Fourth Proportional to 139,762.13, 192,861.81 and 79,333.97

Step by Step Solution

1. Step 1: Write the proportion equation
   139,762.13 : 192,861.81 = 79,333.97 : x
2. Step 2: Convert to fraction form
   139,762.13/192,861.81 = 79,333.97/x
3. Step 3: Cross multiply
   139,762.13x = 192,861.81 × 79,333.97
4. Step 4: Simplify right side
   139,762.13x = 15,300,492,084.38
5. Step 5: Solve for x
   x = 15,300,492,084.38/139,762.13
6. Step 6: Final answer
   x = 109,475.24