Finding the Fourth Proportional to 12,196.23, 18,294.93 and 4,405.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.23 : 18,294.93 = 4,405.02 : x
2. Step 2: Convert to fraction form
   12,196.23/18,294.93 = 4,405.02/x
3. Step 3: Cross multiply
   12,196.23x = 18,294.93 × 4,405.02
4. Step 4: Simplify right side
   12,196.23x = 80,589,532.55
5. Step 5: Solve for x
   x = 80,589,532.55/12,196.23
6. Step 6: Final answer
   x = 6,607.74