Finding the Fourth Proportional to 33,150.18, 45,723.96 and 21,816.06

Step by Step Solution

1. Step 1: Write the proportion equation
   33,150.18 : 45,723.96 = 21,816.06 : x
2. Step 2: Convert to fraction form
   33,150.18/45,723.96 = 21,816.06/x
3. Step 3: Cross multiply
   33,150.18x = 45,723.96 × 21,816.06
4. Step 4: Simplify right side
   33,150.18x = 997,516,654.80
5. Step 5: Solve for x
   x = 997,516,654.80/33,150.18
6. Step 6: Final answer
   x = 30,090.84