Finding the Fourth Proportional to 13,549.33, 18,697.33 and 7,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,549.33 : 18,697.33 = 7,499.31 : x
2. Step 2: Convert to fraction form
   13,549.33/18,697.33 = 7,499.31/x
3. Step 3: Cross multiply
   13,549.33x = 18,697.33 × 7,499.31
4. Step 4: Simplify right side
   13,549.33x = 140,217,073.84
5. Step 5: Solve for x
   x = 140,217,073.84/13,549.33
6. Step 6: Final answer
   x = 10,348.64