Finding the Fourth Proportional to 7,446.77, 10,276.47 and 4,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,446.77 : 10,276.47 = 4,089.50 : x
2. Step 2: Convert to fraction form
   7,446.77/10,276.47 = 4,089.50/x
3. Step 3: Cross multiply
   7,446.77x = 10,276.47 × 4,089.50
4. Step 4: Simplify right side
   7,446.77x = 42,025,572.68
5. Step 5: Solve for x
   x = 42,025,572.68/7,446.77
6. Step 6: Final answer
   x = 5,643.47