Finding the Fourth Proportional to 13,573.98, 18,732.26 and 7,830.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,573.98 : 18,732.26 = 7,830.10 : x
2. Step 2: Convert to fraction form
   13,573.98/18,732.26 = 7,830.10/x
3. Step 3: Cross multiply
   13,573.98x = 18,732.26 × 7,830.10
4. Step 4: Simplify right side
   13,573.98x = 146,675,469.03
5. Step 5: Solve for x
   x = 146,675,469.03/13,573.98
6. Step 6: Final answer
   x = 10,805.63