Finding the Fourth Proportional to 10,641.64, 14,673.72 and 7,285

Step by Step Solution

1. Step 1: Write the proportion equation
   10,641.64 : 14,673.72 = 7,285 : x
2. Step 2: Convert to fraction form
   10,641.64/14,673.72 = 7,285/x
3. Step 3: Cross multiply
   10,641.64x = 14,673.72 × 7,285
4. Step 4: Simplify right side
   10,641.64x = 106,898,050.20
5. Step 5: Solve for x
   x = 106,898,050.20/10,641.64
6. Step 6: Final answer
   x = 10,045.26