Finding the Fourth Proportional to 142,588.20, 196,792.80 and 82,147.34

Step by Step Solution

1. Step 1: Write the proportion equation
   142,588.20 : 196,792.80 = 82,147.34 : x
2. Step 2: Convert to fraction form
   142,588.20/196,792.80 = 82,147.34/x
3. Step 3: Cross multiply
   142,588.20x = 196,792.80 × 82,147.34
4. Step 4: Simplify right side
   142,588.20x = 16,166,005,051.15
5. Step 5: Solve for x
   x = 16,166,005,051.15/142,588.20
6. Step 6: Final answer
   x = 113,375.48