Finding the Fourth Proportional to 17,860.74, 24,648.12 and 9,903.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,860.74 : 24,648.12 = 9,903.30 : x
2. Step 2: Convert to fraction form
   17,860.74/24,648.12 = 9,903.30/x
3. Step 3: Cross multiply
   17,860.74x = 24,648.12 × 9,903.30
4. Step 4: Simplify right side
   17,860.74x = 244,097,726.80
5. Step 5: Solve for x
   x = 244,097,726.80/17,860.74
6. Step 6: Final answer
   x = 13,666.72