Finding the Fourth Proportional to 10,274.72, 14,179.11 and 5,559

Step by Step Solution

1. Step 1: Write the proportion equation
   10,274.72 : 14,179.11 = 5,559 : x
2. Step 2: Convert to fraction form
   10,274.72/14,179.11 = 5,559/x
3. Step 3: Cross multiply
   10,274.72x = 14,179.11 × 5,559
4. Step 4: Simplify right side
   10,274.72x = 78,821,693.34
5. Step 5: Solve for x
   x = 78,821,693.34/10,274.72
6. Step 6: Final answer
   x = 7,671.42