Finding the Fourth Proportional to 17,151.18, 23,669.28 and 9,980.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,151.18 : 23,669.28 = 9,980.52 : x
2. Step 2: Convert to fraction form
   17,151.18/23,669.28 = 9,980.52/x
3. Step 3: Cross multiply
   17,151.18x = 23,669.28 × 9,980.52
4. Step 4: Simplify right side
   17,151.18x = 236,231,722.43
5. Step 5: Solve for x
   x = 236,231,722.43/17,151.18
6. Step 6: Final answer
   x = 13,773.50