Finding the Fourth Proportional to 23,656.81, 32,645.30 and 13,578.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,656.81 : 32,645.30 = 13,578.16 : x
2. Step 2: Convert to fraction form
   23,656.81/32,645.30 = 13,578.16/x
3. Step 3: Cross multiply
   23,656.81x = 32,645.30 × 13,578.16
4. Step 4: Simplify right side
   23,656.81x = 443,262,957.14
5. Step 5: Solve for x
   x = 443,262,957.14/23,656.81
6. Step 6: Final answer
   x = 18,737.23