Finding the Fourth Proportional to 13,404.87, 18,498.57 and 7,436.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.87 : 18,498.57 = 7,436.37 : x
2. Step 2: Convert to fraction form
   13,404.87/18,498.57 = 7,436.37/x
3. Step 3: Cross multiply
   13,404.87x = 18,498.57 × 7,436.37
4. Step 4: Simplify right side
   13,404.87x = 137,562,210.99
5. Step 5: Solve for x
   x = 137,562,210.99/13,404.87
6. Step 6: Final answer
   x = 10,262.11