Finding the Fourth Proportional to 139,742.10, 192,847.56 and 76,083.39

Step by Step Solution

1. Step 1: Write the proportion equation
   139,742.10 : 192,847.56 = 76,083.39 : x
2. Step 2: Convert to fraction form
   139,742.10/192,847.56 = 76,083.39/x
3. Step 3: Cross multiply
   139,742.10x = 192,847.56 × 76,083.39
4. Step 4: Simplify right side
   139,742.10x = 14,672,496,118.03
5. Step 5: Solve for x
   x = 14,672,496,118.03/139,742.10
6. Step 6: Final answer
   x = 104,996.96