Finding the Fourth Proportional to 8,945.47, 12,342.55 and 5,361.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,945.47 : 12,342.55 = 5,361.01 : x
2. Step 2: Convert to fraction form
   8,945.47/12,342.55 = 5,361.01/x
3. Step 3: Cross multiply
   8,945.47x = 12,342.55 × 5,361.01
4. Step 4: Simplify right side
   8,945.47x = 66,168,533.98
5. Step 5: Solve for x
   x = 66,168,533.98/8,945.47
6. Step 6: Final answer
   x = 7,396.88