Finding the Fourth Proportional to 139,697.25, 192,783 and 76,034.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,697.25 : 192,783 = 76,034.89 : x
2. Step 2: Convert to fraction form
   139,697.25/192,783 = 76,034.89/x
3. Step 3: Cross multiply
   139,697.25x = 192,783 × 76,034.89
4. Step 4: Simplify right side
   139,697.25x = 14,658,234,198.87
5. Step 5: Solve for x
   x = 14,658,234,198.87/139,697.25
6. Step 6: Final answer
   x = 104,928.58