Finding the Fourth Proportional to 6,390,610.56, 8,818,997.72 and 3,490,002.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,390,610.56 : 8,818,997.72 = 3,490,002.18 : x
2. Step 2: Convert to fraction form
   6,390,610.56/8,818,997.72 = 3,490,002.18/x
3. Step 3: Cross multiply
   6,390,610.56x = 8,818,997.72 × 3,490,002.18
4. Step 4: Simplify right side
   6,390,610.56x = 30,778,321,250,765.02
5. Step 5: Solve for x
   x = 30,778,321,250,765.02/6,390,610.56
6. Step 6: Final answer
   x = 4,816,178.51