Finding the Fourth Proportional to 142,056.69, 196,111.93 and 103,773.25

Step by Step Solution

1. Step 1: Write the proportion equation
   142,056.69 : 196,111.93 = 103,773.25 : x
2. Step 2: Convert to fraction form
   142,056.69/196,111.93 = 103,773.25/x
3. Step 3: Cross multiply
   142,056.69x = 196,111.93 × 103,773.25
4. Step 4: Simplify right side
   142,056.69x = 20,351,172,339.87
5. Step 5: Solve for x
   x = 20,351,172,339.87/142,056.69
6. Step 6: Final answer
   x = 143,260.93