Finding the Fourth Proportional to 13,072.32, 19,608.17 and 3,211.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,072.32 : 19,608.17 = 3,211.59 : x
2. Step 2: Convert to fraction form
   13,072.32/19,608.17 = 3,211.59/x
3. Step 3: Cross multiply
   13,072.32x = 19,608.17 × 3,211.59
4. Step 4: Simplify right side
   13,072.32x = 62,973,304.65
5. Step 5: Solve for x
   x = 62,973,304.65/13,072.32
6. Step 6: Final answer
   x = 4,817.30