Finding the Fourth Proportional to 8,153,128.72, 12,234,608.28 and 2,838,077.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,153,128.72 : 12,234,608.28 = 2,838,077.20 : x
2. Step 2: Convert to fraction form
   8,153,128.72/12,234,608.28 = 2,838,077.20/x
3. Step 3: Cross multiply
   8,153,128.72x = 12,234,608.28 × 2,838,077.20
4. Step 4: Simplify right side
   8,153,128.72x = 34,722,762,810,399.21
5. Step 5: Solve for x
   x = 34,722,762,810,399.21/8,153,128.72
6. Step 6: Final answer
   x = 4,258,826.76