Finding the Fourth Proportional to 9,618.50, 13,273.53 and 5,426.66

Step by Step Solution

1. Step 1: Write the proportion equation
   9,618.50 : 13,273.53 = 5,426.66 : x
2. Step 2: Convert to fraction form
   9,618.50/13,273.53 = 5,426.66/x
3. Step 3: Cross multiply
   9,618.50x = 13,273.53 × 5,426.66
4. Step 4: Simplify right side
   9,618.50x = 72,030,934.31
5. Step 5: Solve for x
   x = 72,030,934.31/9,618.50
6. Step 6: Final answer
   x = 7,488.79