Finding the Fourth Proportional to 9,889.22, 14,837.72 and 4,338.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,889.22 : 14,837.72 = 4,338.69 : x
2. Step 2: Convert to fraction form
   9,889.22/14,837.72 = 4,338.69/x
3. Step 3: Cross multiply
   9,889.22x = 14,837.72 × 4,338.69
4. Step 4: Simplify right side
   9,889.22x = 64,376,245.69
5. Step 5: Solve for x
   x = 64,376,245.69/9,889.22
6. Step 6: Final answer
   x = 6,509.74