Finding the Fourth Proportional to 12,280,210.42, 18,420,358.83 and 3,760,509.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,280,210.42 : 18,420,358.83 = 3,760,509.46 : x
2. Step 2: Convert to fraction form
   12,280,210.42/18,420,358.83 = 3,760,509.46/x
3. Step 3: Cross multiply
   12,280,210.42x = 18,420,358.83 × 3,760,509.46
4. Step 4: Simplify right side
   12,280,210.42x = 69,269,933,636,809.52
5. Step 5: Solve for x
   x = 69,269,933,636,809.52/12,280,210.42
6. Step 6: Final answer
   x = 5,640,777.42