Finding the Fourth Proportional to 9,427.60, 13,008.72 and 5,649.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,427.60 : 13,008.72 = 5,649.92 : x
2. Step 2: Convert to fraction form
   9,427.60/13,008.72 = 5,649.92/x
3. Step 3: Cross multiply
   9,427.60x = 13,008.72 × 5,649.92
4. Step 4: Simplify right side
   9,427.60x = 73,498,227.30
5. Step 5: Solve for x
   x = 73,498,227.30/9,427.60
6. Step 6: Final answer
   x = 7,796.07