Finding the Fourth Proportional to 23,613.90, 32,586.18 and 13,535.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,613.90 : 32,586.18 = 13,535.34 : x
2. Step 2: Convert to fraction form
   23,613.90/32,586.18 = 13,535.34/x
3. Step 3: Cross multiply
   23,613.90x = 32,586.18 × 13,535.34
4. Step 4: Simplify right side
   23,613.90x = 441,065,025.60
5. Step 5: Solve for x
   x = 441,065,025.60/23,613.90
6. Step 6: Final answer
   x = 18,678.19