Finding the Fourth Proportional to 16,615.16, 22,931.56 and 9,904.67

Step by Step Solution

1. Step 1: Write the proportion equation
   16,615.16 : 22,931.56 = 9,904.67 : x
2. Step 2: Convert to fraction form
   16,615.16/22,931.56 = 9,904.67/x
3. Step 3: Cross multiply
   16,615.16x = 22,931.56 × 9,904.67
4. Step 4: Simplify right side
   16,615.16x = 227,129,534.39
5. Step 5: Solve for x
   x = 227,129,534.39/16,615.16
6. Step 6: Final answer
   x = 13,670.02