Finding the Fourth Proportional to 9,436.91, 13,022.96 and 5,187.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,436.91 : 13,022.96 = 5,187.96 : x
2. Step 2: Convert to fraction form
   9,436.91/13,022.96 = 5,187.96/x
3. Step 3: Cross multiply
   9,436.91x = 13,022.96 × 5,187.96
4. Step 4: Simplify right side
   9,436.91x = 67,562,569.62
5. Step 5: Solve for x
   x = 67,562,569.62/9,436.91
6. Step 6: Final answer
   x = 7,159.40