Finding the Fourth Proportional to 139,723.54, 192,817.52 and 76,061.18

Step by Step Solution

1. Step 1: Write the proportion equation
   139,723.54 : 192,817.52 = 76,061.18 : x
2. Step 2: Convert to fraction form
   139,723.54/192,817.52 = 76,061.18/x
3. Step 3: Cross multiply
   139,723.54x = 192,817.52 × 76,061.18
4. Step 4: Simplify right side
   139,723.54x = 14,665,928,095.87
5. Step 5: Solve for x
   x = 14,665,928,095.87/139,723.54
6. Step 6: Final answer
   x = 104,963.90