Finding the Fourth Proportional to 23,686.20, 32,686.74 and 13,076.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,686.20 : 32,686.74 = 13,076.10 : x
2. Step 2: Convert to fraction form
   23,686.20/32,686.74 = 13,076.10/x
3. Step 3: Cross multiply
   23,686.20x = 32,686.74 × 13,076.10
4. Step 4: Simplify right side
   23,686.20x = 427,415,080.91
5. Step 5: Solve for x
   x = 427,415,080.91/23,686.20
6. Step 6: Final answer
   x = 18,044.90