Finding the Fourth Proportional to 50,722.86, 69,975.54 and 30,568.29

Step by Step Solution

1. Step 1: Write the proportion equation
   50,722.86 : 69,975.54 = 30,568.29 : x
2. Step 2: Convert to fraction form
   50,722.86/69,975.54 = 30,568.29/x
3. Step 3: Cross multiply
   50,722.86x = 69,975.54 × 30,568.29
4. Step 4: Simplify right side
   50,722.86x = 2,139,032,599.63
5. Step 5: Solve for x
   x = 2,139,032,599.63/50,722.86
6. Step 6: Final answer
   x = 42,170.98