Finding the Fourth Proportional to 142,055.81, 196,110.72 and 103,772.38

Step by Step Solution

1. Step 1: Write the proportion equation
   142,055.81 : 196,110.72 = 103,772.38 : x
2. Step 2: Convert to fraction form
   142,055.81/196,110.72 = 103,772.38/x
3. Step 3: Cross multiply
   142,055.81x = 196,110.72 × 103,772.38
4. Step 4: Simplify right side
   142,055.81x = 20,350,874,658.50
5. Step 5: Solve for x
   x = 20,350,874,658.50/142,055.81
6. Step 6: Final answer
   x = 143,259.71