Finding the Fourth Proportional to 78,992.82, 108,429.84 and 69,839.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,992.82 : 108,429.84 = 69,839.82 : x
2. Step 2: Convert to fraction form
   78,992.82/108,429.84 = 69,839.82/x
3. Step 3: Cross multiply
   78,992.82x = 108,429.84 × 69,839.82
4. Step 4: Simplify right side
   78,992.82x = 7,572,720,508.23
5. Step 5: Solve for x
   x = 7,572,720,508.23/78,992.82
6. Step 6: Final answer
   x = 95,865.93