Finding the Fourth Proportional to 69,707.59, 105,086.59 and 65,197.51

Step by Step Solution

1. Step 1: Write the proportion equation
   69,707.59 : 105,086.59 = 65,197.51 : x
2. Step 2: Convert to fraction form
   69,707.59/105,086.59 = 65,197.51/x
3. Step 3: Cross multiply
   69,707.59x = 105,086.59 × 65,197.51
4. Step 4: Simplify right side
   69,707.59x = 6,851,384,002.39
5. Step 5: Solve for x
   x = 6,851,384,002.39/69,707.59
6. Step 6: Final answer
   x = 98,287.49