Finding the Fourth Proportional to 9,070.45, 12,519.83 and 5,485.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,070.45 : 12,519.83 = 5,485.41 : x
2. Step 2: Convert to fraction form
   9,070.45/12,519.83 = 5,485.41/x
3. Step 3: Cross multiply
   9,070.45x = 12,519.83 × 5,485.41
4. Step 4: Simplify right side
   9,070.45x = 68,676,373.25
5. Step 5: Solve for x
   x = 68,676,373.25/9,070.45
6. Step 6: Final answer
   x = 7,571.44