Finding the Fourth Proportional to 89,630.76, 123,689.79 and 49,345.23

Step by Step Solution

1. Step 1: Write the proportion equation
   89,630.76 : 123,689.79 = 49,345.23 : x
2. Step 2: Convert to fraction form
   89,630.76/123,689.79 = 49,345.23/x
3. Step 3: Cross multiply
   89,630.76x = 123,689.79 × 49,345.23
4. Step 4: Simplify right side
   89,630.76x = 6,103,501,136.20
5. Step 5: Solve for x
   x = 6,103,501,136.20/89,630.76
6. Step 6: Final answer
   x = 68,096.05