Finding the Fourth Proportional to 9,992.84, 13,791.78 and 9,549.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992.84 : 13,791.78 = 9,549.96 : x
2. Step 2: Convert to fraction form
   9,992.84/13,791.78 = 9,549.96/x
3. Step 3: Cross multiply
   9,992.84x = 13,791.78 × 9,549.96
4. Step 4: Simplify right side
   9,992.84x = 131,710,947.33
5. Step 5: Solve for x
   x = 131,710,947.33/9,992.84
6. Step 6: Final answer
   x = 13,180.53