Finding the Fourth Proportional to 13,549.49, 18,698.37 and 7,581.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,549.49 : 18,698.37 = 7,581.17 : x
2. Step 2: Convert to fraction form
   13,549.49/18,698.37 = 7,581.17/x
3. Step 3: Cross multiply
   13,549.49x = 18,698.37 × 7,581.17
4. Step 4: Simplify right side
   13,549.49x = 141,755,521.69
5. Step 5: Solve for x
   x = 141,755,521.69/13,549.49
6. Step 6: Final answer
   x = 10,462.06