Finding the Fourth Proportional to 17,173.60, 23,700.42 and 9,619.94

Step by Step Solution

1. Step 1: Write the proportion equation
   17,173.60 : 23,700.42 = 9,619.94 : x
2. Step 2: Convert to fraction form
   17,173.60/23,700.42 = 9,619.94/x
3. Step 3: Cross multiply
   17,173.60x = 23,700.42 × 9,619.94
4. Step 4: Simplify right side
   17,173.60x = 227,996,618.37
5. Step 5: Solve for x
   x = 227,996,618.37/17,173.60
6. Step 6: Final answer
   x = 13,275.99