Finding the Fourth Proportional to 89,423.12, 123,403.86 and 49,136.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89,423.12 : 123,403.86 = 49,136.82 : x
2. Step 2: Convert to fraction form
   89,423.12/123,403.86 = 49,136.82/x
3. Step 3: Cross multiply
   89,423.12x = 123,403.86 × 49,136.82
4. Step 4: Simplify right side
   89,423.12x = 6,063,673,256.13
5. Step 5: Solve for x
   x = 6,063,673,256.13/89,423.12
6. Step 6: Final answer
   x = 67,808.79