Finding the Fourth Proportional to 72,965.79, 108,723.32 and 65,007.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,965.79 : 108,723.32 = 65,007.14 : x
2. Step 2: Convert to fraction form
   72,965.79/108,723.32 = 65,007.14/x
3. Step 3: Cross multiply
   72,965.79x = 108,723.32 × 65,007.14
4. Step 4: Simplify right side
   72,965.79x = 7,067,791,215.85
5. Step 5: Solve for x
   x = 7,067,791,215.85/72,965.79
6. Step 6: Final answer
   x = 96,864.45