Finding the Fourth Proportional to 10,273.54, 14,177.46 and 5,557.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,273.54 : 14,177.46 = 5,557.90 : x
2. Step 2: Convert to fraction form
   10,273.54/14,177.46 = 5,557.90/x
3. Step 3: Cross multiply
   10,273.54x = 14,177.46 × 5,557.90
4. Step 4: Simplify right side
   10,273.54x = 78,796,904.93
5. Step 5: Solve for x
   x = 78,796,904.93/10,273.54
6. Step 6: Final answer
   x = 7,669.89