Finding the Fourth Proportional to 3,909.47, 5,395.83 and 2,316.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909.47 : 5,395.83 = 2,316.47 : x
2. Step 2: Convert to fraction form
   3,909.47/5,395.83 = 2,316.47/x
3. Step 3: Cross multiply
   3,909.47x = 5,395.83 × 2,316.47
4. Step 4: Simplify right side
   3,909.47x = 12,499,278.32
5. Step 5: Solve for x
   x = 12,499,278.32/3,909.47
6. Step 6: Final answer
   x = 3,197.18