Finding the Fourth Proportional to 8,870,404.10, 13,305,606.15 and 2,138,818.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870,404.10 : 13,305,606.15 = 2,138,818.10 : x
2. Step 2: Convert to fraction form
   8,870,404.10/13,305,606.15 = 2,138,818.10/x
3. Step 3: Cross multiply
   8,870,404.10x = 13,305,606.15 × 2,138,818.10
4. Step 4: Simplify right side
   8,870,404.10x = 28,458,271,265,091.32
5. Step 5: Solve for x
   x = 28,458,271,265,091.32/8,870,404.10
6. Step 6: Final answer
   x = 3,208,227.15