Finding the Fourth Proportional to 10,943.67, 16,420.10 and 4,705.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,943.67 : 16,420.10 = 4,705.05 : x
2. Step 2: Convert to fraction form
   10,943.67/16,420.10 = 4,705.05/x
3. Step 3: Cross multiply
   10,943.67x = 16,420.10 × 4,705.05
4. Step 4: Simplify right side
   10,943.67x = 77,257,367.98
5. Step 5: Solve for x
   x = 77,257,367.98/10,943.67
6. Step 6: Final answer
   x = 7,059.55