Finding the Fourth Proportional to 9,007.68, 13,513.60 and 3,164.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,007.68 : 13,513.60 = 3,164.32 : x
2. Step 2: Convert to fraction form
   9,007.68/13,513.60 = 3,164.32/x
3. Step 3: Cross multiply
   9,007.68x = 13,513.60 × 3,164.32
4. Step 4: Simplify right side
   9,007.68x = 42,761,354.75
5. Step 5: Solve for x
   x = 42,761,354.75/9,007.68
6. Step 6: Final answer
   x = 4,747.21