Finding the Fourth Proportional to 17,784.88, 26,688.00 and 7,109.33

Step by Step Solution

1. Step 1: Write the proportion equation
   17,784.88 : 26,688.00 = 7,109.33 : x
2. Step 2: Convert to fraction form
   17,784.88/26,688.00 = 7,109.33/x
3. Step 3: Cross multiply
   17,784.88x = 26,688.00 × 7,109.33
4. Step 4: Simplify right side
   17,784.88x = 189,733,712.33
5. Step 5: Solve for x
   x = 189,733,712.33/17,784.88
6. Step 6: Final answer
   x = 10,668.26