Finding the Fourth Proportional to 16,459.76, 22,714.65 and 9,386.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,459.76 : 22,714.65 = 9,386.60 : x
2. Step 2: Convert to fraction form
   16,459.76/22,714.65 = 9,386.60/x
3. Step 3: Cross multiply
   16,459.76x = 22,714.65 × 9,386.60
4. Step 4: Simplify right side
   16,459.76x = 213,213,333.69
5. Step 5: Solve for x
   x = 213,213,333.69/16,459.76
6. Step 6: Final answer
   x = 12,953.61