Finding the Fourth Proportional to 142,623.98, 196,820.37 and 78,092.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,623.98 : 196,820.37 = 78,092.04 : x
2. Step 2: Convert to fraction form
   142,623.98/196,820.37 = 78,092.04/x
3. Step 3: Cross multiply
   142,623.98x = 196,820.37 × 78,092.04
4. Step 4: Simplify right side
   142,623.98x = 15,370,104,206.85
5. Step 5: Solve for x
   x = 15,370,104,206.85/142,623.98
6. Step 6: Final answer
   x = 107,766.62