Finding the Fourth Proportional to 17,139.06, 23,663.61 and 11,103.84

Step by Step Solution

1. Step 1: Write the proportion equation
   17,139.06 : 23,663.61 = 11,103.84 : x
2. Step 2: Convert to fraction form
   17,139.06/23,663.61 = 11,103.84/x
3. Step 3: Cross multiply
   17,139.06x = 23,663.61 × 11,103.84
4. Step 4: Simplify right side
   17,139.06x = 262,756,939.26
5. Step 5: Solve for x
   x = 262,756,939.26/17,139.06
6. Step 6: Final answer
   x = 15,330.88