Finding the Fourth Proportional to 13,517.05, 18,654.06 and 7,851.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,517.05 : 18,654.06 = 7,851.73 : x
2. Step 2: Convert to fraction form
   13,517.05/18,654.06 = 7,851.73/x
3. Step 3: Cross multiply
   13,517.05x = 18,654.06 × 7,851.73
4. Step 4: Simplify right side
   13,517.05x = 146,466,642.52
5. Step 5: Solve for x
   x = 146,466,642.52/13,517.05
6. Step 6: Final answer
   x = 10,835.70