Finding the Fourth Proportional to 17,737.61, 24,479.00 and 9,780.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,737.61 : 24,479.00 = 9,780.57 : x
2. Step 2: Convert to fraction form
   17,737.61/24,479.00 = 9,780.57/x
3. Step 3: Cross multiply
   17,737.61x = 24,479.00 × 9,780.57
4. Step 4: Simplify right side
   17,737.61x = 239,418,524.13
5. Step 5: Solve for x
   x = 239,418,524.13/17,737.61
6. Step 6: Final answer
   x = 13,497.79