Finding the Fourth Proportional to 6,071.67, 9,111.69 and 3,992.67

Step by Step Solution

1. Step 1: Write the proportion equation
   6,071.67 : 9,111.69 = 3,992.67 : x
2. Step 2: Convert to fraction form
   6,071.67/9,111.69 = 3,992.67/x
3. Step 3: Cross multiply
   6,071.67x = 9,111.69 × 3,992.67
4. Step 4: Simplify right side
   6,071.67x = 36,379,971.31
5. Step 5: Solve for x
   x = 36,379,971.31/6,071.67
6. Step 6: Final answer
   x = 5,991.76