Finding the Fourth Proportional to 9,005.67, 13,507.56 and 4,260.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,005.67 : 13,507.56 = 4,260.69 : x
2. Step 2: Convert to fraction form
   9,005.67/13,507.56 = 4,260.69/x
3. Step 3: Cross multiply
   9,005.67x = 13,507.56 × 4,260.69
4. Step 4: Simplify right side
   9,005.67x = 57,551,525.82
5. Step 5: Solve for x
   x = 57,551,525.82/9,005.67
6. Step 6: Final answer
   x = 6,390.59