Finding the Fourth Proportional to 9,005.49, 13,500.07 and 3,158.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,005.49 : 13,500.07 = 3,158.91 : x
2. Step 2: Convert to fraction form
   9,005.49/13,500.07 = 3,158.91/x
3. Step 3: Cross multiply
   9,005.49x = 13,500.07 × 3,158.91
4. Step 4: Simplify right side
   9,005.49x = 42,645,498.23
5. Step 5: Solve for x
   x = 42,645,498.23/9,005.49
6. Step 6: Final answer
   x = 4,735.50