Finding the Fourth Proportional to 23,601.98, 32,570.16 and 12,991.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,601.98 : 32,570.16 = 12,991.52 : x
2. Step 2: Convert to fraction form
   23,601.98/32,570.16 = 12,991.52/x
3. Step 3: Cross multiply
   23,601.98x = 32,570.16 × 12,991.52
4. Step 4: Simplify right side
   23,601.98x = 423,135,885.04
5. Step 5: Solve for x
   x = 423,135,885.04/23,601.98
6. Step 6: Final answer
   x = 17,927.98