Finding the Fourth Proportional to 23,685.19, 32,685.53 and 13,074.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,685.19 : 32,685.53 = 13,074.80 : x
2. Step 2: Convert to fraction form
   23,685.19/32,685.53 = 13,074.80/x
3. Step 3: Cross multiply
   23,685.19x = 32,685.53 × 13,074.80
4. Step 4: Simplify right side
   23,685.19x = 427,356,604.22
5. Step 5: Solve for x
   x = 427,356,604.22/23,685.19
6. Step 6: Final answer
   x = 18,043.20