Finding the Fourth Proportional to 89,789.42, 123,903.69 and 49,500.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,789.42 : 123,903.69 = 49,500.98 : x
2. Step 2: Convert to fraction form
   89,789.42/123,903.69 = 49,500.98/x
3. Step 3: Cross multiply
   89,789.42x = 123,903.69 × 49,500.98
4. Step 4: Simplify right side
   89,789.42x = 6,133,354,080.62
5. Step 5: Solve for x
   x = 6,133,354,080.62/89,789.42
6. Step 6: Final answer
   x = 68,308.20