Finding the Fourth Proportional to 14,308.84, 21,467.94 and 7,285.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,308.84 : 21,467.94 = 7,285.78 : x
2. Step 2: Convert to fraction form
   14,308.84/21,467.94 = 7,285.78/x
3. Step 3: Cross multiply
   14,308.84x = 21,467.94 × 7,285.78
4. Step 4: Simplify right side
   14,308.84x = 156,410,687.89
5. Step 5: Solve for x
   x = 156,410,687.89/14,308.84
6. Step 6: Final answer
   x = 10,931.05