Finding the Fourth Proportional to 139,670.06, 192,749.00 and 79,243.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,670.06 : 192,749.00 = 79,243.25 : x
2. Step 2: Convert to fraction form
   139,670.06/192,749.00 = 79,243.25/x
3. Step 3: Cross multiply
   139,670.06x = 192,749.00 × 79,243.25
4. Step 4: Simplify right side
   139,670.06x = 15,274,055,834.29
5. Step 5: Solve for x
   x = 15,274,055,834.29/139,670.06
6. Step 6: Final answer
   x = 109,358.13