Finding the Fourth Proportional to 5,405,128.38, 7,459,076.86 and 2,957,739.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,405,128.38 : 7,459,076.86 = 2,957,739.72 : x
2. Step 2: Convert to fraction form
   5,405,128.38/7,459,076.86 = 2,957,739.72/x
3. Step 3: Cross multiply
   5,405,128.38x = 7,459,076.86 × 2,957,739.72
4. Step 4: Simplify right side
   5,405,128.38x = 22,062,007,910,749.23
5. Step 5: Solve for x
   x = 22,062,007,910,749.23/5,405,128.38
6. Step 6: Final answer
   x = 4,081,680.65