Finding the Fourth Proportional to 9,436.23, 13,022.32 and 5,187.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.23 : 13,022.32 = 5,187.47 : x
2. Step 2: Convert to fraction form
   9,436.23/13,022.32 = 5,187.47/x
3. Step 3: Cross multiply
   9,436.23x = 13,022.32 × 5,187.47
4. Step 4: Simplify right side
   9,436.23x = 67,552,934.27
5. Step 5: Solve for x
   x = 67,552,934.27/9,436.23
6. Step 6: Final answer
   x = 7,158.89