Finding the Fourth Proportional to 89,490.83, 123,497.43 and 49,205.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,490.83 : 123,497.43 = 49,205.30 : x
2. Step 2: Convert to fraction form
   89,490.83/123,497.43 = 49,205.30/x
3. Step 3: Cross multiply
   89,490.83x = 123,497.43 × 49,205.30
4. Step 4: Simplify right side
   89,490.83x = 6,076,728,092.38
5. Step 5: Solve for x
   x = 6,076,728,092.38/89,490.83
6. Step 6: Final answer
   x = 67,903.36