Finding the Fourth Proportional to 89,399.68, 123,371.60 and 49,116.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,399.68 : 123,371.60 = 49,116.03 : x
2. Step 2: Convert to fraction form
   89,399.68/123,371.60 = 49,116.03/x
3. Step 3: Cross multiply
   89,399.68x = 123,371.60 × 49,116.03
4. Step 4: Simplify right side
   89,399.68x = 6,059,523,763.13
5. Step 5: Solve for x
   x = 6,059,523,763.13/89,399.68
6. Step 6: Final answer
   x = 67,780.15