Finding the Fourth Proportional to 12,910.02, 17,818.71 and 8,193.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,910.02 : 17,818.71 = 8,193.42 : x
2. Step 2: Convert to fraction form
   12,910.02/17,818.71 = 8,193.42/x
3. Step 3: Cross multiply
   12,910.02x = 17,818.71 × 8,193.42
4. Step 4: Simplify right side
   12,910.02x = 145,996,174.89
5. Step 5: Solve for x
   x = 145,996,174.89/12,910.02
6. Step 6: Final answer
   x = 11,308.75