Finding the Fourth Proportional to 69,317.39, 95,669.78 and 39,111.28

Step by Step Solution

1. Step 1: Write the proportion equation
   69,317.39 : 95,669.78 = 39,111.28 : x
2. Step 2: Convert to fraction form
   69,317.39/95,669.78 = 39,111.28/x
3. Step 3: Cross multiply
   69,317.39x = 95,669.78 × 39,111.28
4. Step 4: Simplify right side
   69,317.39x = 3,741,767,118.39
5. Step 5: Solve for x
   x = 3,741,767,118.39/69,317.39
6. Step 6: Final answer
   x = 53,980.21