Finding the Fourth Proportional to 33,200.31, 49,768.47 and 21,320.58

Step by Step Solution

1. Step 1: Write the proportion equation
   33,200.31 : 49,768.47 = 21,320.58 : x
2. Step 2: Convert to fraction form
   33,200.31/49,768.47 = 21,320.58/x
3. Step 3: Cross multiply
   33,200.31x = 49,768.47 × 21,320.58
4. Step 4: Simplify right side
   33,200.31x = 1,061,092,646.11
5. Step 5: Solve for x
   x = 1,061,092,646.11/33,200.31
6. Step 6: Final answer
   x = 31,960.32