Finding the Fourth Proportional to 139,737.07, 192,830.78 and 76,074.71

Step by Step Solution

1. Step 1: Write the proportion equation
   139,737.07 : 192,830.78 = 76,074.71 : x
2. Step 2: Convert to fraction form
   139,737.07/192,830.78 = 76,074.71/x
3. Step 3: Cross multiply
   139,737.07x = 192,830.78 × 76,074.71
4. Step 4: Simplify right side
   139,737.07x = 14,669,545,287.20
5. Step 5: Solve for x
   x = 14,669,545,287.20/139,737.07
6. Step 6: Final answer
   x = 104,979.63