Finding the Fourth Proportional to 5,900.16, 8,139.48 and 3,538.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,900.16 : 8,139.48 = 3,538.20 : x
2. Step 2: Convert to fraction form
   5,900.16/8,139.48 = 3,538.20/x
3. Step 3: Cross multiply
   5,900.16x = 8,139.48 × 3,538.20
4. Step 4: Simplify right side
   5,900.16x = 28,799,108.14
5. Step 5: Solve for x
   x = 28,799,108.14/5,900.16
6. Step 6: Final answer
   x = 4,881.07