Finding the Fourth Proportional to 16,429.21, 22,664.40 and 10,761.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,429.21 : 22,664.40 = 10,761.50 : x
2. Step 2: Convert to fraction form
   16,429.21/22,664.40 = 10,761.50/x
3. Step 3: Cross multiply
   16,429.21x = 22,664.40 × 10,761.50
4. Step 4: Simplify right side
   16,429.21x = 243,902,940.60
5. Step 5: Solve for x
   x = 243,902,940.60/16,429.21
6. Step 6: Final answer
   x = 14,845.69