Finding the Fourth Proportional to 3,399,399.30, 5,087,289.15 and 3,115,964.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,399,399.30 : 5,087,289.15 = 3,115,964.10 : x
2. Step 2: Convert to fraction form
   3,399,399.30/5,087,289.15 = 3,115,964.10/x
3. Step 3: Cross multiply
   3,399,399.30x = 5,087,289.15 × 3,115,964.10
4. Step 4: Simplify right side
   3,399,399.30x = 15,851,810,357,719.52
5. Step 5: Solve for x
   x = 15,851,810,357,719.52/3,399,399.30
6. Step 6: Final answer
   x = 4,663,121.03