Finding the Fourth Proportional to 142,503.10, 196,636.99 and 82,093.30

Step by Step Solution

1. Step 1: Write the proportion equation
   142,503.10 : 196,636.99 = 82,093.30 : x
2. Step 2: Convert to fraction form
   142,503.10/196,636.99 = 82,093.30/x
3. Step 3: Cross multiply
   142,503.10x = 196,636.99 × 82,093.30
4. Step 4: Simplify right side
   142,503.10x = 16,142,579,411.17
5. Step 5: Solve for x
   x = 16,142,579,411.17/142,503.10
6. Step 6: Final answer
   x = 113,278.79