Finding the Fourth Proportional to 231,858.45, 347,778.56 and 82,092.69

Step by Step Solution

1. Step 1: Write the proportion equation
   231,858.45 : 347,778.56 = 82,092.69 : x
2. Step 2: Convert to fraction form
   231,858.45/347,778.56 = 82,092.69/x
3. Step 3: Cross multiply
   231,858.45x = 347,778.56 × 82,092.69
4. Step 4: Simplify right side
   231,858.45x = 28,550,077,719.96
5. Step 5: Solve for x
   x = 28,550,077,719.96/231,858.45
6. Step 6: Final answer
   x = 123,135.81