Finding the Fourth Proportional to 9,619.38, 13,274.64 and 5,427.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,619.38 : 13,274.64 = 5,427.54 : x
2. Step 2: Convert to fraction form
   9,619.38/13,274.64 = 5,427.54/x
3. Step 3: Cross multiply
   9,619.38x = 13,274.64 × 5,427.54
4. Step 4: Simplify right side
   9,619.38x = 72,048,639.59
5. Step 5: Solve for x
   x = 72,048,639.59/9,619.38
6. Step 6: Final answer
   x = 7,489.95