Finding the Fourth Proportional to 23,680.72, 32,676.80 and 13,069.68

Step by Step Solution

1. Step 1: Write the proportion equation
   23,680.72 : 32,676.80 = 13,069.68 : x
2. Step 2: Convert to fraction form
   23,680.72/32,676.80 = 13,069.68/x
3. Step 3: Cross multiply
   23,680.72x = 32,676.80 × 13,069.68
4. Step 4: Simplify right side
   23,680.72x = 427,075,319.42
5. Step 5: Solve for x
   x = 427,075,319.42/23,680.72
6. Step 6: Final answer
   x = 18,034.73