Finding the Fourth Proportional to 139,721.88, 192,816.20 and 76,060.14

Step by Step Solution

1. Step 1: Write the proportion equation
   139,721.88 : 192,816.20 = 76,060.14 : x
2. Step 2: Convert to fraction form
   139,721.88/192,816.20 = 76,060.14/x
3. Step 3: Cross multiply
   139,721.88x = 192,816.20 × 76,060.14
4. Step 4: Simplify right side
   139,721.88x = 14,665,627,166.27
5. Step 5: Solve for x
   x = 14,665,627,166.27/139,721.88
6. Step 6: Final answer
   x = 104,963.00