Finding the Fourth Proportional to 13,491.83, 18,618.83 and 7,523.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,491.83 : 18,618.83 = 7,523.88 : x
2. Step 2: Convert to fraction form
   13,491.83/18,618.83 = 7,523.88/x
3. Step 3: Cross multiply
   13,491.83x = 18,618.83 × 7,523.88
4. Step 4: Simplify right side
   13,491.83x = 140,085,805.04
5. Step 5: Solve for x
   x = 140,085,805.04/13,491.83
6. Step 6: Final answer
   x = 10,383.01