Finding the Fourth Proportional to 17,798.16, 24,561.60 and 9,840.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,798.16 : 24,561.60 = 9,840.72 : x
2. Step 2: Convert to fraction form
   17,798.16/24,561.60 = 9,840.72/x
3. Step 3: Cross multiply
   17,798.16x = 24,561.60 × 9,840.72
4. Step 4: Simplify right side
   17,798.16x = 241,703,828.35
5. Step 5: Solve for x
   x = 241,703,828.35/17,798.16
6. Step 6: Final answer
   x = 13,580.27