Finding the Fourth Proportional to 13,495.59, 18,614.61 and 12,380.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,495.59 : 18,614.61 = 12,380.22 : x
2. Step 2: Convert to fraction form
   13,495.59/18,614.61 = 12,380.22/x
3. Step 3: Cross multiply
   13,495.59x = 18,614.61 × 12,380.22
4. Step 4: Simplify right side
   13,495.59x = 230,452,967.01
5. Step 5: Solve for x
   x = 230,452,967.01/13,495.59
6. Step 6: Final answer
   x = 17,076.17