Finding the Fourth Proportional to 142,164.82, 196,186.19 and 78,501.25

Step by Step Solution

1. Step 1: Write the proportion equation
   142,164.82 : 196,186.19 = 78,501.25 : x
2. Step 2: Convert to fraction form
   142,164.82/196,186.19 = 78,501.25/x
3. Step 3: Cross multiply
   142,164.82x = 196,186.19 × 78,501.25
4. Step 4: Simplify right side
   142,164.82x = 15,400,861,000.46
5. Step 5: Solve for x
   x = 15,400,861,000.46/142,164.82
6. Step 6: Final answer
   x = 108,331.03