Finding the Fourth Proportional to 17,003.68, 23,456.40 and 11,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,003.68 : 23,456.40 = 11,038.72 : x
2. Step 2: Convert to fraction form
   17,003.68/23,456.40 = 11,038.72/x
3. Step 3: Cross multiply
   17,003.68x = 23,456.40 × 11,038.72
4. Step 4: Simplify right side
   17,003.68x = 258,928,631.81
5. Step 5: Solve for x
   x = 258,928,631.81/17,003.68
6. Step 6: Final answer
   x = 15,227.80