Finding the Fourth Proportional to 49,616, 68,269.20 and 47,892.32

Step by Step Solution

1. Step 1: Write the proportion equation
   49,616 : 68,269.20 = 47,892.32 : x
2. Step 2: Convert to fraction form
   49,616/68,269.20 = 47,892.32/x
3. Step 3: Cross multiply
   49,616x = 68,269.20 × 47,892.32
4. Step 4: Simplify right side
   49,616x = 3,269,570,372.54
5. Step 5: Solve for x
   x = 3,269,570,372.54/49,616
6. Step 6: Final answer
   x = 65,897.50