Finding the Fourth Proportional to 6,145,172.78, 8,479,072.42 and 3,531,171.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,145,172.78 : 8,479,072.42 = 3,531,171.78 : x
2. Step 2: Convert to fraction form
   6,145,172.78/8,479,072.42 = 3,531,171.78/x
3. Step 3: Cross multiply
   6,145,172.78x = 8,479,072.42 × 3,531,171.78
4. Step 4: Simplify right side
   6,145,172.78x = 29,941,061,250,080.30
5. Step 5: Solve for x
   x = 29,941,061,250,080.30/6,145,172.78
6. Step 6: Final answer
   x = 4,872,289.57