Finding the Fourth Proportional to 7,841.31, 10,821.48 and 5,184.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,841.31 : 10,821.48 = 5,184.09 : x
2. Step 2: Convert to fraction form
   7,841.31/10,821.48 = 5,184.09/x
3. Step 3: Cross multiply
   7,841.31x = 10,821.48 × 5,184.09
4. Step 4: Simplify right side
   7,841.31x = 56,099,526.25
5. Step 5: Solve for x
   x = 56,099,526.25/7,841.31
6. Step 6: Final answer
   x = 7,154.36