Finding the Fourth Proportional to 17,945.31, 24,763.60 and 13,699.34

Step by Step Solution

1. Step 1: Write the proportion equation
   17,945.31 : 24,763.60 = 13,699.34 : x
2. Step 2: Convert to fraction form
   17,945.31/24,763.60 = 13,699.34/x
3. Step 3: Cross multiply
   17,945.31x = 24,763.60 × 13,699.34
4. Step 4: Simplify right side
   17,945.31x = 339,244,976.02
5. Step 5: Solve for x
   x = 339,244,976.02/17,945.31
6. Step 6: Final answer
   x = 18,904.38