Finding the Fourth Proportional to 9,308.36, 12,837.75 and 7,895.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.36 : 12,837.75 = 7,895.72 : x
2. Step 2: Convert to fraction form
   9,308.36/12,837.75 = 7,895.72/x
3. Step 3: Cross multiply
   9,308.36x = 12,837.75 × 7,895.72
4. Step 4: Simplify right side
   9,308.36x = 101,363,279.43
5. Step 5: Solve for x
   x = 101,363,279.43/9,308.36
6. Step 6: Final answer
   x = 10,889.49