Finding the Fourth Proportional to 9,462.37, 13,058.05 and 5,485.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,462.37 : 13,058.05 = 5,485.78 : x
2. Step 2: Convert to fraction form
   9,462.37/13,058.05 = 5,485.78/x
3. Step 3: Cross multiply
   9,462.37x = 13,058.05 × 5,485.78
4. Step 4: Simplify right side
   9,462.37x = 71,633,589.53
5. Step 5: Solve for x
   x = 71,633,589.53/9,462.37
6. Step 6: Final answer
   x = 7,570.36