Finding the Fourth Proportional to 139,277, 192,204.52 and 78,846.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,277 : 192,204.52 = 78,846.08 : x
2. Step 2: Convert to fraction form
   139,277/192,204.52 = 78,846.08/x
3. Step 3: Cross multiply
   139,277x = 192,204.52 × 78,846.08
4. Step 4: Simplify right side
   139,277x = 15,154,572,960.28
5. Step 5: Solve for x
   x = 15,154,572,960.28/139,277
6. Step 6: Final answer
   x = 108,808.87