Finding the Fourth Proportional to 7,225.87, 9,971.39 and 4,242.03

Step by Step Solution

1. Step 1: Write the proportion equation
   7,225.87 : 9,971.39 = 4,242.03 : x
2. Step 2: Convert to fraction form
   7,225.87/9,971.39 = 4,242.03/x
3. Step 3: Cross multiply
   7,225.87x = 9,971.39 × 4,242.03
4. Step 4: Simplify right side
   7,225.87x = 42,298,935.52
5. Step 5: Solve for x
   x = 42,298,935.52/7,225.87
6. Step 6: Final answer
   x = 5,853.82