Finding the Fourth Proportional to 33,238.90, 45,858.18 and 21,308.82

Step by Step Solution

1. Step 1: Write the proportion equation
   33,238.90 : 45,858.18 = 21,308.82 : x
2. Step 2: Convert to fraction form
   33,238.90/45,858.18 = 21,308.82/x
3. Step 3: Cross multiply
   33,238.90x = 45,858.18 × 21,308.82
4. Step 4: Simplify right side
   33,238.90x = 977,183,703.15
5. Step 5: Solve for x
   x = 977,183,703.15/33,238.90
6. Step 6: Final answer
   x = 29,398.80