Finding the Fourth Proportional to 23,478.72, 32,400.74 and 12,723.62

Step by Step Solution

1. Step 1: Write the proportion equation
   23,478.72 : 32,400.74 = 12,723.62 : x
2. Step 2: Convert to fraction form
   23,478.72/32,400.74 = 12,723.62/x
3. Step 3: Cross multiply
   23,478.72x = 32,400.74 × 12,723.62
4. Step 4: Simplify right side
   23,478.72x = 412,254,477.86
5. Step 5: Solve for x
   x = 412,254,477.86/23,478.72
6. Step 6: Final answer
   x = 17,558.64