Finding the Fourth Proportional to 139,645, 192,723.06 and 80,029

Step by Step Solution

1. Step 1: Write the proportion equation
   139,645 : 192,723.06 = 80,029 : x
2. Step 2: Convert to fraction form
   139,645/192,723.06 = 80,029/x
3. Step 3: Cross multiply
   139,645x = 192,723.06 × 80,029
4. Step 4: Simplify right side
   139,645x = 15,423,433,768.74
5. Step 5: Solve for x
   x = 15,423,433,768.74/139,645
6. Step 6: Final answer
   x = 110,447.45