Finding the Fourth Proportional to 23,630.61, 32,610.24 and 13,020.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,630.61 : 32,610.24 = 13,020.15 : x
2. Step 2: Convert to fraction form
   23,630.61/32,610.24 = 13,020.15/x
3. Step 3: Cross multiply
   23,630.61x = 32,610.24 × 13,020.15
4. Step 4: Simplify right side
   23,630.61x = 424,590,216.34
5. Step 5: Solve for x
   x = 424,590,216.34/23,630.61
6. Step 6: Final answer
   x = 17,967.81