Finding the Fourth Proportional to 12,303.88, 18,458.89 and 3,538.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,303.88 : 18,458.89 = 3,538.79 : x
2. Step 2: Convert to fraction form
   12,303.88/18,458.89 = 3,538.79/x
3. Step 3: Cross multiply
   12,303.88x = 18,458.89 × 3,538.79
4. Step 4: Simplify right side
   12,303.88x = 65,322,135.34
5. Step 5: Solve for x
   x = 65,322,135.34/12,303.88
6. Step 6: Final answer
   x = 5,309.07