Finding the Fourth Proportional to 32,982.72, 45,485.28 and 21,053.76

Step by Step Solution

1. Step 1: Write the proportion equation
   32,982.72 : 45,485.28 = 21,053.76 : x
2. Step 2: Convert to fraction form
   32,982.72/45,485.28 = 21,053.76/x
3. Step 3: Cross multiply
   32,982.72x = 45,485.28 × 21,053.76
4. Step 4: Simplify right side
   32,982.72x = 957,636,168.65
5. Step 5: Solve for x
   x = 957,636,168.65/32,982.72
6. Step 6: Final answer
   x = 29,034.48