Finding the Fourth Proportional to 12,605.36, 18,905.91 and 3,598.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,605.36 : 18,905.91 = 3,598.83 : x
2. Step 2: Convert to fraction form
   12,605.36/18,905.91 = 3,598.83/x
3. Step 3: Cross multiply
   12,605.36x = 18,905.91 × 3,598.83
4. Step 4: Simplify right side
   12,605.36x = 68,039,142.59
5. Step 5: Solve for x
   x = 68,039,142.59/12,605.36
6. Step 6: Final answer
   x = 5,397.64