Finding the Fourth Proportional to 10,755.45, 16,139.52 and 4,516.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,755.45 : 16,139.52 = 4,516.56 : x
2. Step 2: Convert to fraction form
   10,755.45/16,139.52 = 4,516.56/x
3. Step 3: Cross multiply
   10,755.45x = 16,139.52 × 4,516.56
4. Step 4: Simplify right side
   10,755.45x = 72,895,110.45
5. Step 5: Solve for x
   x = 72,895,110.45/10,755.45
6. Step 6: Final answer
   x = 6,777.50