Finding the Fourth Proportional to 21,613.30, 32,434.54 and 8,464.03

Step by Step Solution

1. Step 1: Write the proportion equation
   21,613.30 : 32,434.54 = 8,464.03 : x
2. Step 2: Convert to fraction form
   21,613.30/32,434.54 = 8,464.03/x
3. Step 3: Cross multiply
   21,613.30x = 32,434.54 × 8,464.03
4. Step 4: Simplify right side
   21,613.30x = 274,526,919.60
5. Step 5: Solve for x
   x = 274,526,919.60/21,613.30
6. Step 6: Final answer
   x = 12,701.76