Finding the Fourth Proportional to 13,404.94, 18,501.19 and 7,738.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.94 : 18,501.19 = 7,738.88 : x
2. Step 2: Convert to fraction form
   13,404.94/18,501.19 = 7,738.88/x
3. Step 3: Cross multiply
   13,404.94x = 18,501.19 × 7,738.88
4. Step 4: Simplify right side
   13,404.94x = 143,178,489.27
5. Step 5: Solve for x
   x = 143,178,489.27/13,404.94
6. Step 6: Final answer
   x = 10,681.02