Finding the Fourth Proportional to 89,839.16, 123,978.66 and 49,554.44

Step by Step Solution

1. Step 1: Write the proportion equation
   89,839.16 : 123,978.66 = 49,554.44 : x
2. Step 2: Convert to fraction form
   89,839.16/123,978.66 = 49,554.44/x
3. Step 3: Cross multiply
   89,839.16x = 123,978.66 × 49,554.44
4. Step 4: Simplify right side
   89,839.16x = 6,143,693,068.25
5. Step 5: Solve for x
   x = 6,143,693,068.25/89,839.16
6. Step 6: Final answer
   x = 68,385.47