Finding the Fourth Proportional to 28,529.37, 42,790.82 and 7,754.49

Step by Step Solution

1. Step 1: Write the proportion equation
   28,529.37 : 42,790.82 = 7,754.49 : x
2. Step 2: Convert to fraction form
   28,529.37/42,790.82 = 7,754.49/x
3. Step 3: Cross multiply
   28,529.37x = 42,790.82 × 7,754.49
4. Step 4: Simplify right side
   28,529.37x = 331,820,947.01
5. Step 5: Solve for x
   x = 331,820,947.01/28,529.37
6. Step 6: Final answer
   x = 11,630.85