Finding the Fourth Proportional to 9,818.10, 14,664.72 and 8,435.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.10 : 14,664.72 = 8,435.46 : x
2. Step 2: Convert to fraction form
   9,818.10/14,664.72 = 8,435.46/x
3. Step 3: Cross multiply
   9,818.10x = 14,664.72 × 8,435.46
4. Step 4: Simplify right side
   9,818.10x = 123,703,658.97
5. Step 5: Solve for x
   x = 123,703,658.97/9,818.10
6. Step 6: Final answer
   x = 12,599.55