Finding the Fourth Proportional to 92,592.10, 138,078.82 and 82,386.10

Step by Step Solution

1. Step 1: Write the proportion equation
   92,592.10 : 138,078.82 = 82,386.10 : x
2. Step 2: Convert to fraction form
   92,592.10/138,078.82 = 82,386.10/x
3. Step 3: Cross multiply
   92,592.10x = 138,078.82 × 82,386.10
4. Step 4: Simplify right side
   92,592.10x = 11,375,775,747.98
5. Step 5: Solve for x
   x = 11,375,775,747.98/92,592.10
6. Step 6: Final answer
   x = 122,859.03