Finding the Fourth Proportional to 142,056.56, 196,111.76 and 103,773.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,056.56 : 196,111.76 = 103,773.12 : x
2. Step 2: Convert to fraction form
   142,056.56/196,111.76 = 103,773.12/x
3. Step 3: Cross multiply
   142,056.56x = 196,111.76 × 103,773.12
4. Step 4: Simplify right side
   142,056.56x = 20,351,129,203.89
5. Step 5: Solve for x
   x = 20,351,129,203.89/142,056.56
6. Step 6: Final answer
   x = 143,260.75