Finding the Fourth Proportional to 10,274.72, 14,179.12 and 5,558.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,274.72 : 14,179.12 = 5,558.99 : x
2. Step 2: Convert to fraction form
   10,274.72/14,179.12 = 5,558.99/x
3. Step 3: Cross multiply
   10,274.72x = 14,179.12 × 5,558.99
4. Step 4: Simplify right side
   10,274.72x = 78,821,501.50
5. Step 5: Solve for x
   x = 78,821,501.50/10,274.72
6. Step 6: Final answer
   x = 7,671.41