Finding the Fourth Proportional to 17,593, 24,278.43 and 13,120.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,593 : 24,278.43 = 13,120.72 : x
2. Step 2: Convert to fraction form
   17,593/24,278.43 = 13,120.72/x
3. Step 3: Cross multiply
   17,593x = 24,278.43 × 13,120.72
4. Step 4: Simplify right side
   17,593x = 318,550,482.07
5. Step 5: Solve for x
   x = 318,550,482.07/17,593
6. Step 6: Final answer
   x = 18,106.66