Finding the Fourth Proportional to 89,425.06, 123,408.31 and 49,136.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,425.06 : 123,408.31 = 49,136.42 : x
2. Step 2: Convert to fraction form
   89,425.06/123,408.31 = 49,136.42/x
3. Step 3: Cross multiply
   89,425.06x = 123,408.31 × 49,136.42
4. Step 4: Simplify right side
   89,425.06x = 6,063,842,829.46
5. Step 5: Solve for x
   x = 6,063,842,829.46/89,425.06
6. Step 6: Final answer
   x = 67,809.21