Finding the Fourth Proportional to 17,375.48, 23,978.54 and 9,821.36

Step by Step Solution

1. Step 1: Write the proportion equation
   17,375.48 : 23,978.54 = 9,821.36 : x
2. Step 2: Convert to fraction form
   17,375.48/23,978.54 = 9,821.36/x
3. Step 3: Cross multiply
   17,375.48x = 23,978.54 × 9,821.36
4. Step 4: Simplify right side
   17,375.48x = 235,501,902.87
5. Step 5: Solve for x
   x = 235,501,902.87/17,375.48
6. Step 6: Final answer
   x = 13,553.69