Finding the Fourth Proportional to 9,436.86, 13,022.55 and 5,245.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.86 : 13,022.55 = 5,245.02 : x
2. Step 2: Convert to fraction form
   9,436.86/13,022.55 = 5,245.02/x
3. Step 3: Cross multiply
   9,436.86x = 13,022.55 × 5,245.02
4. Step 4: Simplify right side
   9,436.86x = 68,303,535.20
5. Step 5: Solve for x
   x = 68,303,535.20/9,436.86
6. Step 6: Final answer
   x = 7,237.95