Finding the Fourth Proportional to 12,264.89, 18,397.50 and 3,499.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,264.89 : 18,397.50 = 3,499.80 : x
2. Step 2: Convert to fraction form
   12,264.89/18,397.50 = 3,499.80/x
3. Step 3: Cross multiply
   12,264.89x = 18,397.50 × 3,499.80
4. Step 4: Simplify right side
   12,264.89x = 64,387,570.50
5. Step 5: Solve for x
   x = 64,387,570.50/12,264.89
6. Step 6: Final answer
   x = 5,249.75