Finding the Fourth Proportional to 13,065.49, 18,024.42 and 7,757.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,065.49 : 18,024.42 = 7,757.29 : x
2. Step 2: Convert to fraction form
   13,065.49/18,024.42 = 7,757.29/x
3. Step 3: Cross multiply
   13,065.49x = 18,024.42 × 7,757.29
4. Step 4: Simplify right side
   13,065.49x = 139,820,653.02
5. Step 5: Solve for x
   x = 139,820,653.02/13,065.49
6. Step 6: Final answer
   x = 10,701.52