Finding the Fourth Proportional to 16,531, 22,816.72 and 9,461.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,531 : 22,816.72 = 9,461.50 : x
2. Step 2: Convert to fraction form
   16,531/22,816.72 = 9,461.50/x
3. Step 3: Cross multiply
   16,531x = 22,816.72 × 9,461.50
4. Step 4: Simplify right side
   16,531x = 215,880,396.28
5. Step 5: Solve for x
   x = 215,880,396.28/16,531
6. Step 6: Final answer
   x = 13,059.13