Finding the Fourth Proportional to 17,553.60, 24,244.52 and 13,980.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,553.60 : 24,244.52 = 13,980.60 : x
2. Step 2: Convert to fraction form
   17,553.60/24,244.52 = 13,980.60/x
3. Step 3: Cross multiply
   17,553.60x = 24,244.52 × 13,980.60
4. Step 4: Simplify right side
   17,553.60x = 338,952,936.31
5. Step 5: Solve for x
   x = 338,952,936.31/17,553.60
6. Step 6: Final answer
   x = 19,309.60