Finding the Fourth Proportional to 2,428,404.15, 3,404,742.45 and 2,428,404.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428,404.15 : 3,404,742.45 = 2,428,404.15 : x
2. Step 2: Convert to fraction form
   2,428,404.15/3,404,742.45 = 2,428,404.15/x
3. Step 3: Cross multiply
   2,428,404.15x = 3,404,742.45 × 2,428,404.15
4. Step 4: Simplify right side
   2,428,404.15x = 8,268,090,695,261.17
5. Step 5: Solve for x
   x = 8,268,090,695,261.17/2,428,404.15
6. Step 6: Final answer
   x = 3,404,742.45