Finding the Fourth Proportional to 10,274.45, 14,178.71 and 5,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,274.45 : 14,178.71 = 5,558.72 : x
2. Step 2: Convert to fraction form
   10,274.45/14,178.71 = 5,558.72/x
3. Step 3: Cross multiply
   10,274.45x = 14,178.71 × 5,558.72
4. Step 4: Simplify right side
   10,274.45x = 78,815,421.85
5. Step 5: Solve for x
   x = 78,815,421.85/10,274.45
6. Step 6: Final answer
   x = 7,671.02