Finding the Fourth Proportional to 33,238.56, 45,855.62 and 21,308.88

Step by Step Solution

1. Step 1: Write the proportion equation
   33,238.56 : 45,855.62 = 21,308.88 : x
2. Step 2: Convert to fraction form
   33,238.56/45,855.62 = 21,308.88/x
3. Step 3: Cross multiply
   33,238.56x = 45,855.62 × 21,308.88
4. Step 4: Simplify right side
   33,238.56x = 977,131,903.91
5. Step 5: Solve for x
   x = 977,131,903.91/33,238.56
6. Step 6: Final answer
   x = 29,397.54