Finding the Fourth Proportional to 89,406.84, 123,383.62 and 49,123.21

Step by Step Solution

1. Step 1: Write the proportion equation
   89,406.84 : 123,383.62 = 49,123.21 : x
2. Step 2: Convert to fraction form
   89,406.84/123,383.62 = 49,123.21/x
3. Step 3: Cross multiply
   89,406.84x = 123,383.62 × 49,123.21
4. Step 4: Simplify right side
   89,406.84x = 6,060,999,475.82
5. Step 5: Solve for x
   x = 6,060,999,475.82/89,406.84
6. Step 6: Final answer
   x = 67,791.23