Finding the Fourth Proportional to 16,779.76, 23,153.50 and 9,704.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,779.76 : 23,153.50 = 9,704.81 : x
2. Step 2: Convert to fraction form
   16,779.76/23,153.50 = 9,704.81/x
3. Step 3: Cross multiply
   16,779.76x = 23,153.50 × 9,704.81
4. Step 4: Simplify right side
   16,779.76x = 224,700,333.76
5. Step 5: Solve for x
   x = 224,700,333.76/16,779.76
6. Step 6: Final answer
   x = 13,391.16