Finding the Fourth Proportional to 11,946.16, 16,485.72 and 6,641.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,946.16 : 16,485.72 = 6,641.12 : x
2. Step 2: Convert to fraction form
   11,946.16/16,485.72 = 6,641.12/x
3. Step 3: Cross multiply
   11,946.16x = 16,485.72 × 6,641.12
4. Step 4: Simplify right side
   11,946.16x = 109,483,644.81
5. Step 5: Solve for x
   x = 109,483,644.81/11,946.16
6. Step 6: Final answer
   x = 9,164.76