Finding the Fourth Proportional to 5,897.48, 8,139.30 and 3,807.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,897.48 : 8,139.30 = 3,807.68 : x
2. Step 2: Convert to fraction form
   5,897.48/8,139.30 = 3,807.68/x
3. Step 3: Cross multiply
   5,897.48x = 8,139.30 × 3,807.68
4. Step 4: Simplify right side
   5,897.48x = 30,991,849.82
5. Step 5: Solve for x
   x = 30,991,849.82/5,897.48
6. Step 6: Final answer
   x = 5,255.10