Finding the Fourth Proportional to 142,096.10, 196,087.72 and 84,705.80

Step by Step Solution

1. Step 1: Write the proportion equation
   142,096.10 : 196,087.72 = 84,705.80 : x
2. Step 2: Convert to fraction form
   142,096.10/196,087.72 = 84,705.80/x
3. Step 3: Cross multiply
   142,096.10x = 196,087.72 × 84,705.80
4. Step 4: Simplify right side
   142,096.10x = 16,609,767,471.23
5. Step 5: Solve for x
   x = 16,609,767,471.23/142,096.10
6. Step 6: Final answer
   x = 116,891.08