Finding the Fourth Proportional to 13,404.89, 18,498.11 and 7,436.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.89 : 18,498.11 = 7,436.43 : x
2. Step 2: Convert to fraction form
   13,404.89/18,498.11 = 7,436.43/x
3. Step 3: Cross multiply
   13,404.89x = 18,498.11 × 7,436.43
4. Step 4: Simplify right side
   13,404.89x = 137,559,900.15
5. Step 5: Solve for x
   x = 137,559,900.15/13,404.89
6. Step 6: Final answer
   x = 10,261.92