Finding the Fourth Proportional to 13,549.46, 18,698.12 and 7,499.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,549.46 : 18,698.12 = 7,499.71 : x
2. Step 2: Convert to fraction form
   13,549.46/18,698.12 = 7,499.71/x
3. Step 3: Cross multiply
   13,549.46x = 18,698.12 × 7,499.71
4. Step 4: Simplify right side
   13,549.46x = 140,230,477.55
5. Step 5: Solve for x
   x = 140,230,477.55/13,549.46
6. Step 6: Final answer
   x = 10,349.53