Finding the Fourth Proportional to 142,417, 196,532.22 and 78,755.32

Step by Step Solution

1. Step 1: Write the proportion equation
   142,417 : 196,532.22 = 78,755.32 : x
2. Step 2: Convert to fraction form
   142,417/196,532.22 = 78,755.32/x
3. Step 3: Cross multiply
   142,417x = 196,532.22 × 78,755.32
4. Step 4: Simplify right side
   142,417x = 15,477,957,876.41
5. Step 5: Solve for x
   x = 15,477,957,876.41/142,417
6. Step 6: Final answer
   x = 108,680.55