Finding the Fourth Proportional to 12,379.89, 18,567.52 and 3,493.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,379.89 : 18,567.52 = 3,493.03 : x
2. Step 2: Convert to fraction form
   12,379.89/18,567.52 = 3,493.03/x
3. Step 3: Cross multiply
   12,379.89x = 18,567.52 × 3,493.03
4. Step 4: Simplify right side
   12,379.89x = 64,856,904.39
5. Step 5: Solve for x
   x = 64,856,904.39/12,379.89
6. Step 6: Final answer
   x = 5,238.89