Finding the Fourth Proportional to 139,748.82, 192,853.08 and 76,086.06

Step by Step Solution

1. Step 1: Write the proportion equation
   139,748.82 : 192,853.08 = 76,086.06 : x
2. Step 2: Convert to fraction form
   139,748.82/192,853.08 = 76,086.06/x
3. Step 3: Cross multiply
   139,748.82x = 192,853.08 × 76,086.06
4. Step 4: Simplify right side
   139,748.82x = 14,673,431,016.06
5. Step 5: Solve for x
   x = 14,673,431,016.06/139,748.82
6. Step 6: Final answer
   x = 104,998.60