Finding the Fourth Proportional to 139,723.79, 192,812.00 and 79,300.01

Step by Step Solution

1. Step 1: Write the proportion equation
   139,723.79 : 192,812.00 = 79,300.01 : x
2. Step 2: Convert to fraction form
   139,723.79/192,812.00 = 79,300.01/x
3. Step 3: Cross multiply
   139,723.79x = 192,812.00 × 79,300.01
4. Step 4: Simplify right side
   139,723.79x = 15,289,993,613.65
5. Step 5: Solve for x
   x = 15,289,993,613.65/139,723.79
6. Step 6: Final answer
   x = 109,430.14