Finding the Fourth Proportional to 6,258,531.18, 8,638,120.72 and 3,811,948.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,258,531.18 : 8,638,120.72 = 3,811,948.86 : x
2. Step 2: Convert to fraction form
   6,258,531.18/8,638,120.72 = 3,811,948.86/x
3. Step 3: Cross multiply
   6,258,531.18x = 8,638,120.72 × 3,811,948.86
4. Step 4: Simplify right side
   6,258,531.18x = 32,928,074,431,146.38
5. Step 5: Solve for x
   x = 32,928,074,431,146.38/6,258,531.18
6. Step 6: Final answer
   x = 5,261,310.28