Finding the Fourth Proportional to 17,520.32, 24,189.84 and 13,479.96

Step by Step Solution

1. Step 1: Write the proportion equation
   17,520.32 : 24,189.84 = 13,479.96 : x
2. Step 2: Convert to fraction form
   17,520.32/24,189.84 = 13,479.96/x
3. Step 3: Cross multiply
   17,520.32x = 24,189.84 × 13,479.96
4. Step 4: Simplify right side
   17,520.32x = 326,078,075.61
5. Step 5: Solve for x
   x = 326,078,075.61/17,520.32
6. Step 6: Final answer
   x = 18,611.42