Finding the Fourth Proportional to 142,615, 196,808.70 and 82,999

Step by Step Solution

1. Step 1: Write the proportion equation
   142,615 : 196,808.70 = 82,999 : x
2. Step 2: Convert to fraction form
   142,615/196,808.70 = 82,999/x
3. Step 3: Cross multiply
   142,615x = 196,808.70 × 82,999
4. Step 4: Simplify right side
   142,615x = 16,334,925,291.30
5. Step 5: Solve for x
   x = 16,334,925,291.30/142,615
6. Step 6: Final answer
   x = 114,538.62