Finding the Fourth Proportional to 69,452.88, 104,409.88 and 57,064.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,452.88 : 104,409.88 = 57,064.72 : x
2. Step 2: Convert to fraction form
   69,452.88/104,409.88 = 57,064.72/x
3. Step 3: Cross multiply
   69,452.88x = 104,409.88 × 57,064.72
4. Step 4: Simplify right side
   69,452.88x = 5,958,120,567.43
5. Step 5: Solve for x
   x = 5,958,120,567.43/69,452.88
6. Step 6: Final answer
   x = 85,786.52