Finding the Fourth Proportional to 142,950.50, 197,142.54 and 89,240.48

Step by Step Solution

1. Step 1: Write the proportion equation
   142,950.50 : 197,142.54 = 89,240.48 : x
2. Step 2: Convert to fraction form
   142,950.50/197,142.54 = 89,240.48/x
3. Step 3: Cross multiply
   142,950.50x = 197,142.54 × 89,240.48
4. Step 4: Simplify right side
   142,950.50x = 17,593,094,898.02
5. Step 5: Solve for x
   x = 17,593,094,898.02/142,950.50
6. Step 6: Final answer
   x = 123,071.24