Finding the Fourth Proportional to 17,245.98, 23,777.01 and 13,003.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,245.98 : 23,777.01 = 13,003.20 : x
2. Step 2: Convert to fraction form
   17,245.98/23,777.01 = 13,003.20/x
3. Step 3: Cross multiply
   17,245.98x = 23,777.01 × 13,003.20
4. Step 4: Simplify right side
   17,245.98x = 309,177,216.43
5. Step 5: Solve for x
   x = 309,177,216.43/17,245.98
6. Step 6: Final answer
   x = 17,927.49