Finding the Fourth Proportional to 9,407.48, 12,982.41 and 5,427.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407.48 : 12,982.41 = 5,427.81 : x
2. Step 2: Convert to fraction form
   9,407.48/12,982.41 = 5,427.81/x
3. Step 3: Cross multiply
   9,407.48x = 12,982.41 × 5,427.81
4. Step 4: Simplify right side
   9,407.48x = 70,466,054.82
5. Step 5: Solve for x
   x = 70,466,054.82/9,407.48
6. Step 6: Final answer
   x = 7,490.43