Finding the Fourth Proportional to 9,009.32, 13,515.42 and 3,166.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,009.32 : 13,515.42 = 3,166.12 : x
2. Step 2: Convert to fraction form
   9,009.32/13,515.42 = 3,166.12/x
3. Step 3: Cross multiply
   9,009.32x = 13,515.42 × 3,166.12
4. Step 4: Simplify right side
   9,009.32x = 42,791,441.57
5. Step 5: Solve for x
   x = 42,791,441.57/9,009.32
6. Step 6: Final answer
   x = 4,749.69