Finding the Fourth Proportional to 17,173.70, 23,699.24 and 9,620.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,173.70 : 23,699.24 = 9,620.72 : x
2. Step 2: Convert to fraction form
   17,173.70/23,699.24 = 9,620.72/x
3. Step 3: Cross multiply
   17,173.70x = 23,699.24 × 9,620.72
4. Step 4: Simplify right side
   17,173.70x = 228,003,752.25
5. Step 5: Solve for x
   x = 228,003,752.25/17,173.70
6. Step 6: Final answer
   x = 13,276.33