Finding the Fourth Proportional to 139,828.47, 192,963.83 and 76,165.71

Step by Step Solution

1. Step 1: Write the proportion equation
   139,828.47 : 192,963.83 = 76,165.71 : x
2. Step 2: Convert to fraction form
   139,828.47/192,963.83 = 76,165.71/x
3. Step 3: Cross multiply
   139,828.47x = 192,963.83 × 76,165.71
4. Step 4: Simplify right side
   139,828.47x = 14,697,227,116.27
5. Step 5: Solve for x
   x = 14,697,227,116.27/139,828.47
6. Step 6: Final answer
   x = 105,108.97