Finding the Fourth Proportional to 10,272.96, 14,176.71 and 5,557.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,272.96 : 14,176.71 = 5,557.28 : x
2. Step 2: Convert to fraction form
   10,272.96/14,176.71 = 5,557.28/x
3. Step 3: Cross multiply
   10,272.96x = 14,176.71 × 5,557.28
4. Step 4: Simplify right side
   10,272.96x = 78,783,876.07
5. Step 5: Solve for x
   x = 78,783,876.07/10,272.96
6. Step 6: Final answer
   x = 7,669.05