Finding the Fourth Proportional to 23,490, 32,416.20 and 13,554

Step by Step Solution

1. Step 1: Write the proportion equation
   23,490 : 32,416.20 = 13,554 : x
2. Step 2: Convert to fraction form
   23,490/32,416.20 = 13,554/x
3. Step 3: Cross multiply
   23,490x = 32,416.20 × 13,554
4. Step 4: Simplify right side
   23,490x = 439,369,174.80
5. Step 5: Solve for x
   x = 439,369,174.80/23,490
6. Step 6: Final answer
   x = 18,704.52