Finding the Fourth Proportional to 13,403.00, 18,496.97 and 7,738.79

Step by Step Solution

1. Step 1: Write the proportion equation
   13,403.00 : 18,496.97 = 7,738.79 : x
2. Step 2: Convert to fraction form
   13,403.00/18,496.97 = 7,738.79/x
3. Step 3: Cross multiply
   13,403.00x = 18,496.97 × 7,738.79
4. Step 4: Simplify right side
   13,403.00x = 143,144,035.29
5. Step 5: Solve for x
   x = 143,144,035.29/13,403.00
6. Step 6: Final answer
   x = 10,680.00