Finding the Fourth Proportional to 142,616.08, 196,802.38 and 78,072.83

Step by Step Solution

1. Step 1: Write the proportion equation
   142,616.08 : 196,802.38 = 78,072.83 : x
2. Step 2: Convert to fraction form
   142,616.08/196,802.38 = 78,072.83/x
3. Step 3: Cross multiply
   142,616.08x = 196,802.38 × 78,072.83
4. Step 4: Simplify right side
   142,616.08x = 15,364,918,757.34
5. Step 5: Solve for x
   x = 15,364,918,757.34/142,616.08
6. Step 6: Final answer
   x = 107,736.23