Finding the Fourth Proportional to 7,070.72, 9,735.23 and 5,386.73

Step by Step Solution

1. Step 1: Write the proportion equation
   7,070.72 : 9,735.23 = 5,386.73 : x
2. Step 2: Convert to fraction form
   7,070.72/9,735.23 = 5,386.73/x
3. Step 3: Cross multiply
   7,070.72x = 9,735.23 × 5,386.73
4. Step 4: Simplify right side
   7,070.72x = 52,440,979.89
5. Step 5: Solve for x
   x = 52,440,979.89/7,070.72
6. Step 6: Final answer
   x = 7,416.64