Finding the Fourth Proportional to 7,015.67, 9,681.32 and 3,828.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,015.67 : 9,681.32 = 3,828.89 : x
2. Step 2: Convert to fraction form
   7,015.67/9,681.32 = 3,828.89/x
3. Step 3: Cross multiply
   7,015.67x = 9,681.32 × 3,828.89
4. Step 4: Simplify right side
   7,015.67x = 37,068,670.50
5. Step 5: Solve for x
   x = 37,068,670.50/7,015.67
6. Step 6: Final answer
   x = 5,283.70