Finding the Fourth Proportional to 8,139,715.80, 12,211,323.30 and 2,460,514.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139,715.80 : 12,211,323.30 = 2,460,514.20 : x
2. Step 2: Convert to fraction form
   8,139,715.80/12,211,323.30 = 2,460,514.20/x
3. Step 3: Cross multiply
   8,139,715.80x = 12,211,323.30 × 2,460,514.20
4. Step 4: Simplify right side
   8,139,715.80x = 30,046,134,380,440.86
5. Step 5: Solve for x
   x = 30,046,134,380,440.86/8,139,715.80
6. Step 6: Final answer
   x = 3,691,300.18