Finding the Fourth Proportional to 7,087.34, 9,780.53 and 3,943.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,087.34 : 9,780.53 = 3,943.50 : x
2. Step 2: Convert to fraction form
   7,087.34/9,780.53 = 3,943.50/x
3. Step 3: Cross multiply
   7,087.34x = 9,780.53 × 3,943.50
4. Step 4: Simplify right side
   7,087.34x = 38,569,500.34
5. Step 5: Solve for x
   x = 38,569,500.34/7,087.34
6. Step 6: Final answer
   x = 5,442.03