Finding the Fourth Proportional to 89,404.38, 123,347.93 and 50,636.90

Step by Step Solution

1. Step 1: Write the proportion equation
   89,404.38 : 123,347.93 = 50,636.90 : x
2. Step 2: Convert to fraction form
   89,404.38/123,347.93 = 50,636.90/x
3. Step 3: Cross multiply
   89,404.38x = 123,347.93 × 50,636.90
4. Step 4: Simplify right side
   89,404.38x = 6,245,956,851.80
5. Step 5: Solve for x
   x = 6,245,956,851.80/89,404.38
6. Step 6: Final answer
   x = 69,861.87