Finding the Fourth Proportional to 9,209.88, 13,816.71 and 2,970.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,209.88 : 13,816.71 = 2,970.72 : x
2. Step 2: Convert to fraction form
   9,209.88/13,816.71 = 2,970.72/x
3. Step 3: Cross multiply
   9,209.88x = 13,816.71 × 2,970.72
4. Step 4: Simplify right side
   9,209.88x = 41,045,576.73
5. Step 5: Solve for x
   x = 41,045,576.73/9,209.88
6. Step 6: Final answer
   x = 4,456.69