Finding the Fourth Proportional to 142,526.72, 196,685.60 and 85,162.92

Step by Step Solution

1. Step 1: Write the proportion equation
   142,526.72 : 196,685.60 = 85,162.92 : x
2. Step 2: Convert to fraction form
   142,526.72/196,685.60 = 85,162.92/x
3. Step 3: Cross multiply
   142,526.72x = 196,685.60 × 85,162.92
4. Step 4: Simplify right side
   142,526.72x = 16,750,320,017.95
5. Step 5: Solve for x
   x = 16,750,320,017.95/142,526.72
6. Step 6: Final answer
   x = 117,524.07