Finding the Fourth Proportional to 23,685.48, 32,685.12 and 13,075.09

Step by Step Solution

1. Step 1: Write the proportion equation
   23,685.48 : 32,685.12 = 13,075.09 : x
2. Step 2: Convert to fraction form
   23,685.48/32,685.12 = 13,075.09/x
3. Step 3: Cross multiply
   23,685.48x = 32,685.12 × 13,075.09
4. Step 4: Simplify right side
   23,685.48x = 427,360,803.95
5. Step 5: Solve for x
   x = 427,360,803.95/23,685.48
6. Step 6: Final answer
   x = 18,043.16