Finding the Fourth Proportional to 48,971.49, 67,595.10 and 31,978.38

Step by Step Solution

1. Step 1: Write the proportion equation
   48,971.49 : 67,595.10 = 31,978.38 : x
2. Step 2: Convert to fraction form
   48,971.49/67,595.10 = 31,978.38/x
3. Step 3: Cross multiply
   48,971.49x = 67,595.10 × 31,978.38
4. Step 4: Simplify right side
   48,971.49x = 2,161,581,793.94
5. Step 5: Solve for x
   x = 2,161,581,793.94/48,971.49
6. Step 6: Final answer
   x = 44,139.60