Finding the Fourth Proportional to 17,376, 23,978.88 and 9,924

Step by Step Solution

1. Step 1: Write the proportion equation
   17,376 : 23,978.88 = 9,924 : x
2. Step 2: Convert to fraction form
   17,376/23,978.88 = 9,924/x
3. Step 3: Cross multiply
   17,376x = 23,978.88 × 9,924
4. Step 4: Simplify right side
   17,376x = 237,966,405.12
5. Step 5: Solve for x
   x = 237,966,405.12/17,376
6. Step 6: Final answer
   x = 13,695.12