Finding the Fourth Proportional to 17,742.20, 24,484.40 and 9,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,742.20 : 24,484.40 = 9,784.72 : x
2. Step 2: Convert to fraction form
   17,742.20/24,484.40 = 9,784.72/x
3. Step 3: Cross multiply
   17,742.20x = 24,484.40 × 9,784.72
4. Step 4: Simplify right side
   17,742.20x = 239,572,998.37
5. Step 5: Solve for x
   x = 239,572,998.37/17,742.20
6. Step 6: Final answer
   x = 13,503.00