Finding the Fourth Proportional to 23,287.20, 32,136.72 and 12,677.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,287.20 : 32,136.72 = 12,677.04 : x
2. Step 2: Convert to fraction form
   23,287.20/32,136.72 = 12,677.04/x
3. Step 3: Cross multiply
   23,287.20x = 32,136.72 × 12,677.04
4. Step 4: Simplify right side
   23,287.20x = 407,398,484.91
5. Step 5: Solve for x
   x = 407,398,484.91/23,287.20
6. Step 6: Final answer
   x = 17,494.52