Finding the Fourth Proportional to 9,006.54, 12,425.55 and 5,643.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,006.54 : 12,425.55 = 5,643.49 : x
2. Step 2: Convert to fraction form
   9,006.54/12,425.55 = 5,643.49/x
3. Step 3: Cross multiply
   9,006.54x = 12,425.55 × 5,643.49
4. Step 4: Simplify right side
   9,006.54x = 70,123,467.17
5. Step 5: Solve for x
   x = 70,123,467.17/9,006.54
6. Step 6: Final answer
   x = 7,785.84