Finding the Fourth Proportional to 142,597.72, 196,805.94 and 82,156.84

Step by Step Solution

1. Step 1: Write the proportion equation
   142,597.72 : 196,805.94 = 82,156.84 : x
2. Step 2: Convert to fraction form
   142,597.72/196,805.94 = 82,156.84/x
3. Step 3: Cross multiply
   142,597.72x = 196,805.94 × 82,156.84
4. Step 4: Simplify right side
   142,597.72x = 16,168,954,123.63
5. Step 5: Solve for x
   x = 16,168,954,123.63/142,597.72
6. Step 6: Final answer
   x = 113,388.59