Finding the Fourth Proportional to 9,821.12, 13,553.55 and 5,630.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821.12 : 13,553.55 = 5,630.18 : x
2. Step 2: Convert to fraction form
   9,821.12/13,553.55 = 5,630.18/x
3. Step 3: Cross multiply
   9,821.12x = 13,553.55 × 5,630.18
4. Step 4: Simplify right side
   9,821.12x = 76,308,858.37
5. Step 5: Solve for x
   x = 76,308,858.37/9,821.12
6. Step 6: Final answer
   x = 7,769.88