Finding the Fourth Proportional to 23,259.42, 32,086.70 and 13,821.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,259.42 : 32,086.70 = 13,821.30 : x
2. Step 2: Convert to fraction form
   23,259.42/32,086.70 = 13,821.30/x
3. Step 3: Cross multiply
   23,259.42x = 32,086.70 × 13,821.30
4. Step 4: Simplify right side
   23,259.42x = 443,479,906.71
5. Step 5: Solve for x
   x = 443,479,906.71/23,259.42
6. Step 6: Final answer
   x = 19,066.68