Finding the Fourth Proportional to 23,064.48, 31,829.74 and 13,505.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,064.48 : 31,829.74 = 13,505.32 : x
2. Step 2: Convert to fraction form
   23,064.48/31,829.74 = 13,505.32/x
3. Step 3: Cross multiply
   23,064.48x = 31,829.74 × 13,505.32
4. Step 4: Simplify right side
   23,064.48x = 429,870,824.22
5. Step 5: Solve for x
   x = 429,870,824.22/23,064.48
6. Step 6: Final answer
   x = 18,637.79