Finding the Fourth Proportional to 89,805.51, 123,929.22 and 49,518.59

Step by Step Solution

1. Step 1: Write the proportion equation
   89,805.51 : 123,929.22 = 49,518.59 : x
2. Step 2: Convert to fraction form
   89,805.51/123,929.22 = 49,518.59/x
3. Step 3: Cross multiply
   89,805.51x = 123,929.22 × 49,518.59
4. Step 4: Simplify right side
   89,805.51x = 6,136,799,614.55
5. Step 5: Solve for x
   x = 6,136,799,614.55/89,805.51
6. Step 6: Final answer
   x = 68,334.33