Finding the Fourth Proportional to 9,618.84, 13,273.98 and 5,427.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,618.84 : 13,273.98 = 5,427.12 : x
2. Step 2: Convert to fraction form
   9,618.84/13,273.98 = 5,427.12/x
3. Step 3: Cross multiply
   9,618.84x = 13,273.98 × 5,427.12
4. Step 4: Simplify right side
   9,618.84x = 72,039,482.34
5. Step 5: Solve for x
   x = 72,039,482.34/9,618.84
6. Step 6: Final answer
   x = 7,489.41