Finding the Fourth Proportional to 9,911.52, 14,864.98 and 2,889.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,911.52 : 14,864.98 = 2,889.72 : x
2. Step 2: Convert to fraction form
   9,911.52/14,864.98 = 2,889.72/x
3. Step 3: Cross multiply
   9,911.52x = 14,864.98 × 2,889.72
4. Step 4: Simplify right side
   9,911.52x = 42,955,630.01
5. Step 5: Solve for x
   x = 42,955,630.01/9,911.52
6. Step 6: Final answer
   x = 4,333.91