Finding the Fourth Proportional to 139,768.06, 192,883.38 and 76,109.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,768.06 : 192,883.38 = 76,109.32 : x
2. Step 2: Convert to fraction form
   139,768.06/192,883.38 = 76,109.32/x
3. Step 3: Cross multiply
   139,768.06x = 192,883.38 × 76,109.32
4. Step 4: Simplify right side
   139,768.06x = 14,680,222,891.10
5. Step 5: Solve for x
   x = 14,680,222,891.10/139,768.06
6. Step 6: Final answer
   x = 105,032.74