Finding the Fourth Proportional to 23,685.55, 32,685.90 and 13,075.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,685.55 : 32,685.90 = 13,075.18 : x
2. Step 2: Convert to fraction form
   23,685.55/32,685.90 = 13,075.18/x
3. Step 3: Cross multiply
   23,685.55x = 32,685.90 × 13,075.18
4. Step 4: Simplify right side
   23,685.55x = 427,374,025.96
5. Step 5: Solve for x
   x = 427,374,025.96/23,685.55
6. Step 6: Final answer
   x = 18,043.66