Finding the Fourth Proportional to 127,948.50, 191,938.55 and 56,871

Step by Step Solution

1. Step 1: Write the proportion equation
   127,948.50 : 191,938.55 = 56,871 : x
2. Step 2: Convert to fraction form
   127,948.50/191,938.55 = 56,871/x
3. Step 3: Cross multiply
   127,948.50x = 191,938.55 × 56,871
4. Step 4: Simplify right side
   127,948.50x = 10,915,736,992.70
5. Step 5: Solve for x
   x = 10,915,736,992.70/127,948.50
6. Step 6: Final answer
   x = 85,313.52