Finding the Fourth Proportional to 32,768.16, 45,185.04 and 21,570.72

Step by Step Solution

1. Step 1: Write the proportion equation
   32,768.16 : 45,185.04 = 21,570.72 : x
2. Step 2: Convert to fraction form
   32,768.16/45,185.04 = 21,570.72/x
3. Step 3: Cross multiply
   32,768.16x = 45,185.04 × 21,570.72
4. Step 4: Simplify right side
   32,768.16x = 974,673,846.03
5. Step 5: Solve for x
   x = 974,673,846.03/32,768.16
6. Step 6: Final answer
   x = 29,744.54