Finding the Fourth Proportional to 7,031.38, 9,703.24 and 3,887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,031.38 : 9,703.24 = 3,887.50 : x
2. Step 2: Convert to fraction form
   7,031.38/9,703.24 = 3,887.50/x
3. Step 3: Cross multiply
   7,031.38x = 9,703.24 × 3,887.50
4. Step 4: Simplify right side
   7,031.38x = 37,721,345.50
5. Step 5: Solve for x
   x = 37,721,345.50/7,031.38
6. Step 6: Final answer
   x = 5,364.71