Finding the Fourth Proportional to 33,947.06, 50,641.58 and 28,985.31

Step by Step Solution

1. Step 1: Write the proportion equation
   33,947.06 : 50,641.58 = 28,985.31 : x
2. Step 2: Convert to fraction form
   33,947.06/50,641.58 = 28,985.31/x
3. Step 3: Cross multiply
   33,947.06x = 50,641.58 × 28,985.31
4. Step 4: Simplify right side
   33,947.06x = 1,467,861,967.65
5. Step 5: Solve for x
   x = 1,467,861,967.65/33,947.06
6. Step 6: Final answer
   x = 43,239.74