Finding the Fourth Proportional to 7,031.47, 9,703.15 and 3,887.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,031.47 : 9,703.15 = 3,887.59 : x
2. Step 2: Convert to fraction form
   7,031.47/9,703.15 = 3,887.59/x
3. Step 3: Cross multiply
   7,031.47x = 9,703.15 × 3,887.59
4. Step 4: Simplify right side
   7,031.47x = 37,721,868.91
5. Step 5: Solve for x
   x = 37,721,868.91/7,031.47
6. Step 6: Final answer
   x = 5,364.72