Finding the Fourth Proportional to 89,407.10, 123,383.97 and 49,123.47

Step by Step Solution

1. Step 1: Write the proportion equation
   89,407.10 : 123,383.97 = 49,123.47 : x
2. Step 2: Convert to fraction form
   89,407.10/123,383.97 = 49,123.47/x
3. Step 3: Cross multiply
   89,407.10x = 123,383.97 × 49,123.47
4. Step 4: Simplify right side
   89,407.10x = 6,061,048,503.16
5. Step 5: Solve for x
   x = 6,061,048,503.16/89,407.10
6. Step 6: Final answer
   x = 67,791.58