Finding the Fourth Proportional to 13,746.62, 18,969.18 and 8,081.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,746.62 : 18,969.18 = 8,081.55 : x
2. Step 2: Convert to fraction form
   13,746.62/18,969.18 = 8,081.55/x
3. Step 3: Cross multiply
   13,746.62x = 18,969.18 × 8,081.55
4. Step 4: Simplify right side
   13,746.62x = 153,300,376.63
5. Step 5: Solve for x
   x = 153,300,376.63/13,746.62
6. Step 6: Final answer
   x = 11,151.86