Finding the Fourth Proportional to 17,459.68, 26,203.20 and 7,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,459.68 : 26,203.20 = 7,078.72 : x
2. Step 2: Convert to fraction form
   17,459.68/26,203.20 = 7,078.72/x
3. Step 3: Cross multiply
   17,459.68x = 26,203.20 × 7,078.72
4. Step 4: Simplify right side
   17,459.68x = 185,485,115.90
5. Step 5: Solve for x
   x = 185,485,115.90/17,459.68
6. Step 6: Final answer
   x = 10,623.63