Finding the Fourth Proportional to 33,057.76, 45,627.42 and 21,131.32

Step by Step Solution

1. Step 1: Write the proportion equation
   33,057.76 : 45,627.42 = 21,131.32 : x
2. Step 2: Convert to fraction form
   33,057.76/45,627.42 = 21,131.32/x
3. Step 3: Cross multiply
   33,057.76x = 45,627.42 × 21,131.32
4. Step 4: Simplify right side
   33,057.76x = 964,167,612.79
5. Step 5: Solve for x
   x = 964,167,612.79/33,057.76
6. Step 6: Final answer
   x = 29,166.15