Finding the Fourth Proportional to 9,817.50, 13,548.15 and 5,628.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,817.50 : 13,548.15 = 5,628.18 : x
2. Step 2: Convert to fraction form
   9,817.50/13,548.15 = 5,628.18/x
3. Step 3: Cross multiply
   9,817.50x = 13,548.15 × 5,628.18
4. Step 4: Simplify right side
   9,817.50x = 76,251,426.87
5. Step 5: Solve for x
   x = 76,251,426.87/9,817.50
6. Step 6: Final answer
   x = 7,766.89