Finding the Fourth Proportional to 9,619.22, 13,274.62 and 5,427.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,619.22 : 13,274.62 = 5,427.56 : x
2. Step 2: Convert to fraction form
   9,619.22/13,274.62 = 5,427.56/x
3. Step 3: Cross multiply
   9,619.22x = 13,274.62 × 5,427.56
4. Step 4: Simplify right side
   9,619.22x = 72,048,796.53
5. Step 5: Solve for x
   x = 72,048,796.53/9,619.22
6. Step 6: Final answer
   x = 7,490.09