Finding the Fourth Proportional to 16,817.76, 25,227.96 and 5,131.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,817.76 : 25,227.96 = 5,131.08 : x
2. Step 2: Convert to fraction form
   16,817.76/25,227.96 = 5,131.08/x
3. Step 3: Cross multiply
   16,817.76x = 25,227.96 × 5,131.08
4. Step 4: Simplify right side
   16,817.76x = 129,446,681.00
5. Step 5: Solve for x
   x = 129,446,681.00/16,817.76
6. Step 6: Final answer
   x = 7,697.02