Finding the Fourth Proportional to 9,618.73, 13,274.09 and 5,427.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,618.73 : 13,274.09 = 5,427.25 : x
2. Step 2: Convert to fraction form
   9,618.73/13,274.09 = 5,427.25/x
3. Step 3: Cross multiply
   9,618.73x = 13,274.09 × 5,427.25
4. Step 4: Simplify right side
   9,618.73x = 72,041,804.95
5. Step 5: Solve for x
   x = 72,041,804.95/9,618.73
6. Step 6: Final answer
   x = 7,489.74