Finding the Fourth Proportional to 8,188,802.88, 12,284,778.72 and 3,139,719.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,188,802.88 : 12,284,778.72 = 3,139,719.60 : x
2. Step 2: Convert to fraction form
   8,188,802.88/12,284,778.72 = 3,139,719.60/x
3. Step 3: Cross multiply
   8,188,802.88x = 12,284,778.72 × 3,139,719.60
4. Step 4: Simplify right side
   8,188,802.88x = 38,570,760,528,846.91
5. Step 5: Solve for x
   x = 38,570,760,528,846.91/8,188,802.88
6. Step 6: Final answer
   x = 4,710,183.05