Finding the Fourth Proportional to 142,026.81, 195,969.69 and 85,441.83

Step by Step Solution

1. Step 1: Write the proportion equation
   142,026.81 : 195,969.69 = 85,441.83 : x
2. Step 2: Convert to fraction form
   142,026.81/195,969.69 = 85,441.83/x
3. Step 3: Cross multiply
   142,026.81x = 195,969.69 × 85,441.83
4. Step 4: Simplify right side
   142,026.81x = 16,744,008,938.13
5. Step 5: Solve for x
   x = 16,744,008,938.13/142,026.81
6. Step 6: Final answer
   x = 117,893.30