Finding the Fourth Proportional to 7,555.72, 10,423.98 and 5,571

Step by Step Solution

1. Step 1: Write the proportion equation
   7,555.72 : 10,423.98 = 5,571 : x
2. Step 2: Convert to fraction form
   7,555.72/10,423.98 = 5,571/x
3. Step 3: Cross multiply
   7,555.72x = 10,423.98 × 5,571
4. Step 4: Simplify right side
   7,555.72x = 58,071,992.58
5. Step 5: Solve for x
   x = 58,071,992.58/7,555.72
6. Step 6: Final answer
   x = 7,685.83