Finding the Fourth Proportional to 72,966.79, 108,724.81 and 65,008.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,966.79 : 108,724.81 = 65,008.14 : x
2. Step 2: Convert to fraction form
   72,966.79/108,724.81 = 65,008.14/x
3. Step 3: Cross multiply
   72,966.79x = 108,724.81 × 65,008.14
4. Step 4: Simplify right side
   72,966.79x = 7,067,997,669.95
5. Step 5: Solve for x
   x = 7,067,997,669.95/72,966.79
6. Step 6: Final answer
   x = 96,865.95