Finding the Fourth Proportional to 139,809.82, 192,937.52 and 76,147.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,809.82 : 192,937.52 = 76,147.62 : x
2. Step 2: Convert to fraction form
   139,809.82/192,937.52 = 76,147.62/x
3. Step 3: Cross multiply
   139,809.82x = 192,937.52 × 76,147.62
4. Step 4: Simplify right side
   139,809.82x = 14,691,732,956.70
5. Step 5: Solve for x
   x = 14,691,732,956.70/139,809.82
6. Step 6: Final answer
   x = 105,083.70