Finding the Fourth Proportional to 23,689.61, 32,690.61 and 13,079.01

Step by Step Solution

1. Step 1: Write the proportion equation
   23,689.61 : 32,690.61 = 13,079.01 : x
2. Step 2: Convert to fraction form
   23,689.61/32,690.61 = 13,079.01/x
3. Step 3: Cross multiply
   23,689.61x = 32,690.61 × 13,079.01
4. Step 4: Simplify right side
   23,689.61x = 427,560,815.10
5. Step 5: Solve for x
   x = 427,560,815.10/23,689.61
6. Step 6: Final answer
   x = 18,048.46