Finding the Fourth Proportional to 60,804.26, 90,594.82 and 57,408.94

Step by Step Solution

1. Step 1: Write the proportion equation
   60,804.26 : 90,594.82 = 57,408.94 : x
2. Step 2: Convert to fraction form
   60,804.26/90,594.82 = 57,408.94/x
3. Step 3: Cross multiply
   60,804.26x = 90,594.82 × 57,408.94
4. Step 4: Simplify right side
   60,804.26x = 5,200,952,585.69
5. Step 5: Solve for x
   x = 5,200,952,585.69/60,804.26
6. Step 6: Final answer
   x = 85,535.99