Finding the Fourth Proportional to 3,753,128.78, 5,627,560.31 and 1,477,420.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,753,128.78 : 5,627,560.31 = 1,477,420.82 : x
2. Step 2: Convert to fraction form
   3,753,128.78/5,627,560.31 = 1,477,420.82/x
3. Step 3: Cross multiply
   3,753,128.78x = 5,627,560.31 × 1,477,420.82
4. Step 4: Simplify right side
   3,753,128.78x = 8,314,274,780,021.78
5. Step 5: Solve for x
   x = 8,314,274,780,021.78/3,753,128.78
6. Step 6: Final answer
   x = 2,215,291.63