Finding the Fourth Proportional to 33,152.25, 45,756.04 and 21,215.18

Step by Step Solution

1. Step 1: Write the proportion equation
   33,152.25 : 45,756.04 = 21,215.18 : x
2. Step 2: Convert to fraction form
   33,152.25/45,756.04 = 21,215.18/x
3. Step 3: Cross multiply
   33,152.25x = 45,756.04 × 21,215.18
4. Step 4: Simplify right side
   33,152.25x = 970,722,725.82
5. Step 5: Solve for x
   x = 970,722,725.82/33,152.25
6. Step 6: Final answer
   x = 29,280.75