Finding the Fourth Proportional to 7,030.04, 9,700.72 and 3,886

Step by Step Solution

1. Step 1: Write the proportion equation
   7,030.04 : 9,700.72 = 3,886 : x
2. Step 2: Convert to fraction form
   7,030.04/9,700.72 = 3,886/x
3. Step 3: Cross multiply
   7,030.04x = 9,700.72 × 3,886
4. Step 4: Simplify right side
   7,030.04x = 37,696,997.92
5. Step 5: Solve for x
   x = 37,696,997.92/7,030.04
6. Step 6: Final answer
   x = 5,362.27