Finding the Fourth Proportional to 142,680, 196,897.98 and 82,250.31

Step by Step Solution

1. Step 1: Write the proportion equation
   142,680 : 196,897.98 = 82,250.31 : x
2. Step 2: Convert to fraction form
   142,680/196,897.98 = 82,250.31/x
3. Step 3: Cross multiply
   142,680x = 196,897.98 × 82,250.31
4. Step 4: Simplify right side
   142,680x = 16,194,919,893.37
5. Step 5: Solve for x
   x = 16,194,919,893.37/142,680
6. Step 6: Final answer
   x = 113,505.19