Finding the Fourth Proportional to 16,615.13, 22,931.33 and 9,904.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,615.13 : 22,931.33 = 9,904.69 : x
2. Step 2: Convert to fraction form
   16,615.13/22,931.33 = 9,904.69/x
3. Step 3: Cross multiply
   16,615.13x = 22,931.33 × 9,904.69
4. Step 4: Simplify right side
   16,615.13x = 227,127,608.09
5. Step 5: Solve for x
   x = 227,127,608.09/16,615.13
6. Step 6: Final answer
   x = 13,669.92