Finding the Fourth Proportional to 127,949.50, 191,940.05 and 56,872

Step by Step Solution

1. Step 1: Write the proportion equation
   127,949.50 : 191,940.05 = 56,872 : x
2. Step 2: Convert to fraction form
   127,949.50/191,940.05 = 56,872/x
3. Step 3: Cross multiply
   127,949.50x = 191,940.05 × 56,872
4. Step 4: Simplify right side
   127,949.50x = 10,916,014,523.60
5. Step 5: Solve for x
   x = 10,916,014,523.60/127,949.50
6. Step 6: Final answer
   x = 85,315.02