Finding the Fourth Proportional to 86,847, 130,196.58 and 82,713.54

Step by Step Solution

1. Step 1: Write the proportion equation
   86,847 : 130,196.58 = 82,713.54 : x
2. Step 2: Convert to fraction form
   86,847/130,196.58 = 82,713.54/x
3. Step 3: Cross multiply
   86,847x = 130,196.58 × 82,713.54
4. Step 4: Simplify right side
   86,847x = 10,769,020,027.69
5. Step 5: Solve for x
   x = 10,769,020,027.69/86,847
6. Step 6: Final answer
   x = 123,999.91