Finding the Fourth Proportional to 50,047.86, 68,908.68 and 42,478.41

Step by Step Solution

1. Step 1: Write the proportion equation
   50,047.86 : 68,908.68 = 42,478.41 : x
2. Step 2: Convert to fraction form
   50,047.86/68,908.68 = 42,478.41/x
3. Step 3: Cross multiply
   50,047.86x = 68,908.68 × 42,478.41
4. Step 4: Simplify right side
   50,047.86x = 2,927,131,161.60
5. Step 5: Solve for x
   x = 2,927,131,161.60/50,047.86
6. Step 6: Final answer
   x = 58,486.64