Finding the Fourth Proportional to 5,146.30, 7,103.06 and 2,909.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,146.30 : 7,103.06 = 2,909.47 : x
2. Step 2: Convert to fraction form
   5,146.30/7,103.06 = 2,909.47/x
3. Step 3: Cross multiply
   5,146.30x = 7,103.06 × 2,909.47
4. Step 4: Simplify right side
   5,146.30x = 20,666,139.98
5. Step 5: Solve for x
   x = 20,666,139.98/5,146.30
6. Step 6: Final answer
   x = 4,015.73