Finding the Fourth Proportional to 9,554.38, 13,181.86 and 5,776.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,554.38 : 13,181.86 = 5,776.11 : x
2. Step 2: Convert to fraction form
   9,554.38/13,181.86 = 5,776.11/x
3. Step 3: Cross multiply
   9,554.38x = 13,181.86 × 5,776.11
4. Step 4: Simplify right side
   9,554.38x = 76,139,896.83
5. Step 5: Solve for x
   x = 76,139,896.83/9,554.38
6. Step 6: Final answer
   x = 7,969.11