Finding the Fourth Proportional to 17,776.31, 24,531.53 and 9,818.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,776.31 : 24,531.53 = 9,818.55 : x
2. Step 2: Convert to fraction form
   17,776.31/24,531.53 = 9,818.55/x
3. Step 3: Cross multiply
   17,776.31x = 24,531.53 × 9,818.55
4. Step 4: Simplify right side
   17,776.31x = 240,864,004.79
5. Step 5: Solve for x
   x = 240,864,004.79/17,776.31
6. Step 6: Final answer
   x = 13,549.72