Finding the Fourth Proportional to 89,773.91, 123,888.38 and 49,486.80

Step by Step Solution

1. Step 1: Write the proportion equation
   89,773.91 : 123,888.38 = 49,486.80 : x
2. Step 2: Convert to fraction form
   89,773.91/123,888.38 = 49,486.80/x
3. Step 3: Cross multiply
   89,773.91x = 123,888.38 × 49,486.80
4. Step 4: Simplify right side
   89,773.91x = 6,130,839,483.38
5. Step 5: Solve for x
   x = 6,130,839,483.38/89,773.91
6. Step 6: Final answer
   x = 68,292.00