Finding the Fourth Proportional to 84,826.48, 117,105.98 and 65,402.96

Step by Step Solution

1. Step 1: Write the proportion equation
   84,826.48 : 117,105.98 = 65,402.96 : x
2. Step 2: Convert to fraction form
   84,826.48/117,105.98 = 65,402.96/x
3. Step 3: Cross multiply
   84,826.48x = 117,105.98 × 65,402.96
4. Step 4: Simplify right side
   84,826.48x = 7,659,078,181.97
5. Step 5: Solve for x
   x = 7,659,078,181.97/84,826.48
6. Step 6: Final answer
   x = 90,291.13