Finding the Fourth Proportional to 23,781.02, 32,817.40 and 13,170.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,781.02 : 32,817.40 = 13,170.42 : x
2. Step 2: Convert to fraction form
   23,781.02/32,817.40 = 13,170.42/x
3. Step 3: Cross multiply
   23,781.02x = 32,817.40 × 13,170.42
4. Step 4: Simplify right side
   23,781.02x = 432,218,941.31
5. Step 5: Solve for x
   x = 432,218,941.31/23,781.02
6. Step 6: Final answer
   x = 18,174.95