Finding the Fourth Proportional to 13,404.97, 18,494.17 and 7,739.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.97 : 18,494.17 = 7,739.56 : x
2. Step 2: Convert to fraction form
   13,404.97/18,494.17 = 7,739.56/x
3. Step 3: Cross multiply
   13,404.97x = 18,494.17 × 7,739.56
4. Step 4: Simplify right side
   13,404.97x = 143,136,738.37
5. Step 5: Solve for x
   x = 143,136,738.37/13,404.97
6. Step 6: Final answer
   x = 10,677.89