Finding the Fourth Proportional to 17,709.79, 26,547.98 and 8,816.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,709.79 : 26,547.98 = 8,816.72 : x
2. Step 2: Convert to fraction form
   17,709.79/26,547.98 = 8,816.72/x
3. Step 3: Cross multiply
   17,709.79x = 26,547.98 × 8,816.72
4. Step 4: Simplify right side
   17,709.79x = 234,065,995.53
5. Step 5: Solve for x
   x = 234,065,995.53/17,709.79
6. Step 6: Final answer
   x = 13,216.76