Finding the Fourth Proportional to 13,745, 18,968.52 and 7,776.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,745 : 18,968.52 = 7,776.54 : x
2. Step 2: Convert to fraction form
   13,745/18,968.52 = 7,776.54/x
3. Step 3: Cross multiply
   13,745x = 18,968.52 × 7,776.54
4. Step 4: Simplify right side
   13,745x = 147,509,454.52
5. Step 5: Solve for x
   x = 147,509,454.52/13,745
6. Step 6: Final answer
   x = 10,731.86