Finding the Fourth Proportional to 139,764.29, 192,868.70 and 79,333.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139,764.29 : 192,868.70 = 79,333.83 : x
2. Step 2: Convert to fraction form
   139,764.29/192,868.70 = 79,333.83/x
3. Step 3: Cross multiply
   139,764.29x = 192,868.70 × 79,333.83
4. Step 4: Simplify right side
   139,764.29x = 15,301,012,261.45
5. Step 5: Solve for x
   x = 15,301,012,261.45/139,764.29
6. Step 6: Final answer
   x = 109,477.27