Finding the Fourth Proportional to 84,998.38, 117,345.81 and 64,695.82

Step by Step Solution

1. Step 1: Write the proportion equation
   84,998.38 : 117,345.81 = 64,695.82 : x
2. Step 2: Convert to fraction form
   84,998.38/117,345.81 = 64,695.82/x
3. Step 3: Cross multiply
   84,998.38x = 117,345.81 × 64,695.82
4. Step 4: Simplify right side
   84,998.38x = 7,591,783,401.51
5. Step 5: Solve for x
   x = 7,591,783,401.51/84,998.38
6. Step 6: Final answer
   x = 89,316.80