Finding the Fourth Proportional to 16,748.86, 23,117.60 and 9,679.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,748.86 : 23,117.60 = 9,679.38 : x
2. Step 2: Convert to fraction form
   16,748.86/23,117.60 = 9,679.38/x
3. Step 3: Cross multiply
   16,748.86x = 23,117.60 × 9,679.38
4. Step 4: Simplify right side
   16,748.86x = 223,764,102.63
5. Step 5: Solve for x
   x = 223,764,102.63/16,748.86
6. Step 6: Final answer
   x = 13,359.96