Finding the Fourth Proportional to 9,814.56, 14,722.08 and 2,889.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,814.56 : 14,722.08 = 2,889.60 : x
2. Step 2: Convert to fraction form
   9,814.56/14,722.08 = 2,889.60/x
3. Step 3: Cross multiply
   9,814.56x = 14,722.08 × 2,889.60
4. Step 4: Simplify right side
   9,814.56x = 42,540,922.37
5. Step 5: Solve for x
   x = 42,540,922.37/9,814.56
6. Step 6: Final answer
   x = 4,334.47