Finding the Fourth Proportional to 17,115.72, 23,620.32 and 9,459.06

Step by Step Solution

1. Step 1: Write the proportion equation
   17,115.72 : 23,620.32 = 9,459.06 : x
2. Step 2: Convert to fraction form
   17,115.72/23,620.32 = 9,459.06/x
3. Step 3: Cross multiply
   17,115.72x = 23,620.32 × 9,459.06
4. Step 4: Simplify right side
   17,115.72x = 223,426,024.10
5. Step 5: Solve for x
   x = 223,426,024.10/17,115.72
6. Step 6: Final answer
   x = 13,053.85