Finding the Fourth Proportional to 9,436.09, 13,022.10 and 5,187.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.09 : 13,022.10 = 5,187.48 : x
2. Step 2: Convert to fraction form
   9,436.09/13,022.10 = 5,187.48/x
3. Step 3: Cross multiply
   9,436.09x = 13,022.10 × 5,187.48
4. Step 4: Simplify right side
   9,436.09x = 67,551,803.43
5. Step 5: Solve for x
   x = 67,551,803.43/9,436.09
6. Step 6: Final answer
   x = 7,158.88