Finding the Fourth Proportional to 23,630.51, 32,609.71 and 13,021.13

Step by Step Solution

1. Step 1: Write the proportion equation
   23,630.51 : 32,609.71 = 13,021.13 : x
2. Step 2: Convert to fraction form
   23,630.51/32,609.71 = 13,021.13/x
3. Step 3: Cross multiply
   23,630.51x = 32,609.71 × 13,021.13
4. Step 4: Simplify right side
   23,630.51x = 424,615,273.17
5. Step 5: Solve for x
   x = 424,615,273.17/23,630.51
6. Step 6: Final answer
   x = 17,968.94