Finding the Fourth Proportional to 50,911.61, 70,254.81 and 30,756.60

Step by Step Solution

1. Step 1: Write the proportion equation
   50,911.61 : 70,254.81 = 30,756.60 : x
2. Step 2: Convert to fraction form
   50,911.61/70,254.81 = 30,756.60/x
3. Step 3: Cross multiply
   50,911.61x = 70,254.81 × 30,756.60
4. Step 4: Simplify right side
   50,911.61x = 2,160,799,089.25
5. Step 5: Solve for x
   x = 2,160,799,089.25/50,911.61
6. Step 6: Final answer
   x = 42,442.17