Finding the Fourth Proportional to 50,124.42, 75,128.31 and 49,570.38

Step by Step Solution

1. Step 1: Write the proportion equation
   50,124.42 : 75,128.31 = 49,570.38 : x
2. Step 2: Convert to fraction form
   50,124.42/75,128.31 = 49,570.38/x
3. Step 3: Cross multiply
   50,124.42x = 75,128.31 × 49,570.38
4. Step 4: Simplify right side
   50,124.42x = 3,724,138,875.46
5. Step 5: Solve for x
   x = 3,724,138,875.46/50,124.42
6. Step 6: Final answer
   x = 74,297.89