Finding the Fourth Proportional to 9,889.34, 14,834.79 and 2,869.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,889.34 : 14,834.79 = 2,869.47 : x
2. Step 2: Convert to fraction form
   9,889.34/14,834.79 = 2,869.47/x
3. Step 3: Cross multiply
   9,889.34x = 14,834.79 × 2,869.47
4. Step 4: Simplify right side
   9,889.34x = 42,567,984.86
5. Step 5: Solve for x
   x = 42,567,984.86/9,889.34
6. Step 6: Final answer
   x = 4,304.43