Finding the Fourth Proportional to 142,055.56, 196,110.38 and 103,772.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,055.56 : 196,110.38 = 103,772.12 : x
2. Step 2: Convert to fraction form
   142,055.56/196,110.38 = 103,772.12/x
3. Step 3: Cross multiply
   142,055.56x = 196,110.38 × 103,772.12
4. Step 4: Simplify right side
   142,055.56x = 20,350,789,858.02
5. Step 5: Solve for x
   x = 20,350,789,858.02/142,055.56
6. Step 6: Final answer
   x = 143,259.37