Finding the Fourth Proportional to 33,990.72, 50,641.20 and 32,317.68

Step by Step Solution

1. Step 1: Write the proportion equation
   33,990.72 : 50,641.20 = 32,317.68 : x
2. Step 2: Convert to fraction form
   33,990.72/50,641.20 = 32,317.68/x
3. Step 3: Cross multiply
   33,990.72x = 50,641.20 × 32,317.68
4. Step 4: Simplify right side
   33,990.72x = 1,636,606,096.42
5. Step 5: Solve for x
   x = 1,636,606,096.42/33,990.72
6. Step 6: Final answer
   x = 48,148.62