Finding the Fourth Proportional to 9,619.08, 13,275.42 and 5,427

Step by Step Solution

1. Step 1: Write the proportion equation
   9,619.08 : 13,275.42 = 5,427 : x
2. Step 2: Convert to fraction form
   9,619.08/13,275.42 = 5,427/x
3. Step 3: Cross multiply
   9,619.08x = 13,275.42 × 5,427
4. Step 4: Simplify right side
   9,619.08x = 72,045,704.34
5. Step 5: Solve for x
   x = 72,045,704.34/9,619.08
6. Step 6: Final answer
   x = 7,489.87