Finding the Fourth Proportional to 16,435.63, 22,681.17 and 9,366.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,435.63 : 22,681.17 = 9,366.15 : x
2. Step 2: Convert to fraction form
   16,435.63/22,681.17 = 9,366.15/x
3. Step 3: Cross multiply
   16,435.63x = 22,681.17 × 9,366.15
4. Step 4: Simplify right side
   16,435.63x = 212,435,193.56
5. Step 5: Solve for x
   x = 212,435,193.56/16,435.63
6. Step 6: Final answer
   x = 12,925.29