Finding the Fourth Proportional to 139,368.29, 192,323.84 and 78,944.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,368.29 : 192,323.84 = 78,944.52 : x
2. Step 2: Convert to fraction form
   139,368.29/192,323.84 = 78,944.52/x
3. Step 3: Cross multiply
   139,368.29x = 192,323.84 × 78,944.52
4. Step 4: Simplify right side
   139,368.29x = 15,182,912,838.63
5. Step 5: Solve for x
   x = 15,182,912,838.63/139,368.29
6. Step 6: Final answer
   x = 108,940.95