Finding the Fourth Proportional to 17,091.77, 23,588.45 and 9,540.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,091.77 : 23,588.45 = 9,540.72 : x
2. Step 2: Convert to fraction form
   17,091.77/23,588.45 = 9,540.72/x
3. Step 3: Cross multiply
   17,091.77x = 23,588.45 × 9,540.72
4. Step 4: Simplify right side
   17,091.77x = 225,050,748.98
5. Step 5: Solve for x
   x = 225,050,748.98/17,091.77
6. Step 6: Final answer
   x = 13,167.20