Finding the Fourth Proportional to 12,074.20, 16,664.72 and 7,875.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074.20 : 16,664.72 = 7,875.16 : x
2. Step 2: Convert to fraction form
   12,074.20/16,664.72 = 7,875.16/x
3. Step 3: Cross multiply
   12,074.20x = 16,664.72 × 7,875.16
4. Step 4: Simplify right side
   12,074.20x = 131,237,336.36
5. Step 5: Solve for x
   x = 131,237,336.36/12,074.20
6. Step 6: Final answer
   x = 10,869.24