Finding the Fourth Proportional to 17,875.98, 24,668.64 and 9,918.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,875.98 : 24,668.64 = 9,918.12 : x
2. Step 2: Convert to fraction form
   17,875.98/24,668.64 = 9,918.12/x
3. Step 3: Cross multiply
   17,875.98x = 24,668.64 × 9,918.12
4. Step 4: Simplify right side
   17,875.98x = 244,666,531.76
5. Step 5: Solve for x
   x = 244,666,531.76/17,875.98
6. Step 6: Final answer
   x = 13,686.89