Finding the Fourth Proportional to 5,113,311.72, 7,056,361.98 and 2,821,470.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,113,311.72 : 7,056,361.98 = 2,821,470.72 : x
2. Step 2: Convert to fraction form
   5,113,311.72/7,056,361.98 = 2,821,470.72/x
3. Step 3: Cross multiply
   5,113,311.72x = 7,056,361.98 × 2,821,470.72
4. Step 4: Simplify right side
   5,113,311.72x = 19,909,318,716,291.23
5. Step 5: Solve for x
   x = 19,909,318,716,291.23/5,113,311.72
6. Step 6: Final answer
   x = 3,893,625.07