Finding the Fourth Proportional to 7,064.40, 9,748.72 and 3,920.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,064.40 : 9,748.72 = 3,920.52 : x
2. Step 2: Convert to fraction form
   7,064.40/9,748.72 = 3,920.52/x
3. Step 3: Cross multiply
   7,064.40x = 9,748.72 × 3,920.52
4. Step 4: Simplify right side
   7,064.40x = 38,220,051.73
5. Step 5: Solve for x
   x = 38,220,051.73/7,064.40
6. Step 6: Final answer
   x = 5,410.23