Finding the Fourth Proportional to 13,433.98, 18,537.48 and 7,767.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,433.98 : 18,537.48 = 7,767.82 : x
2. Step 2: Convert to fraction form
   13,433.98/18,537.48 = 7,767.82/x
3. Step 3: Cross multiply
   13,433.98x = 18,537.48 × 7,767.82
4. Step 4: Simplify right side
   13,433.98x = 143,995,807.89
5. Step 5: Solve for x
   x = 143,995,807.89/13,433.98
6. Step 6: Final answer
   x = 10,718.77