Finding the Fourth Proportional to 9,045.50, 12,485.22 and 5,905.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,045.50 : 12,485.22 = 5,905.94 : x
2. Step 2: Convert to fraction form
   9,045.50/12,485.22 = 5,905.94/x
3. Step 3: Cross multiply
   9,045.50x = 12,485.22 × 5,905.94
4. Step 4: Simplify right side
   9,045.50x = 73,736,960.21
5. Step 5: Solve for x
   x = 73,736,960.21/9,045.50
6. Step 6: Final answer
   x = 8,151.78