Finding the Fourth Proportional to 142,960, 197,284.96 and 83,355.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,960 : 197,284.96 = 83,355.52 : x
2. Step 2: Convert to fraction form
   142,960/197,284.96 = 83,355.52/x
3. Step 3: Cross multiply
   142,960x = 197,284.96 × 83,355.52
4. Step 4: Simplify right side
   142,960x = 16,444,790,428.98
5. Step 5: Solve for x
   x = 16,444,790,428.98/142,960
6. Step 6: Final answer
   x = 115,030.71