Finding the Fourth Proportional to 83,628, 115,402.46 and 49,637.96

Step by Step Solution

1. Step 1: Write the proportion equation
   83,628 : 115,402.46 = 49,637.96 : x
2. Step 2: Convert to fraction form
   83,628/115,402.46 = 49,637.96/x
3. Step 3: Cross multiply
   83,628x = 115,402.46 × 49,637.96
4. Step 4: Simplify right side
   83,628x = 5,728,342,693.38
5. Step 5: Solve for x
   x = 5,728,342,693.38/83,628
6. Step 6: Final answer
   x = 68,497.90