Finding the Fourth Proportional to 69,979.89, 96,512.81 and 59,131.17

Step by Step Solution

1. Step 1: Write the proportion equation
   69,979.89 : 96,512.81 = 59,131.17 : x
2. Step 2: Convert to fraction form
   69,979.89/96,512.81 = 59,131.17/x
3. Step 3: Cross multiply
   69,979.89x = 96,512.81 × 59,131.17
4. Step 4: Simplify right side
   69,979.89x = 5,706,915,375.29
5. Step 5: Solve for x
   x = 5,706,915,375.29/69,979.89
6. Step 6: Final answer
   x = 81,550.79