Finding the Fourth Proportional to 11,005,250.10, 16,507,875.15 and 8,485,826.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005,250.10 : 16,507,875.15 = 8,485,826.10 : x
2. Step 2: Convert to fraction form
   11,005,250.10/16,507,875.15 = 8,485,826.10/x
3. Step 3: Cross multiply
   11,005,250.10x = 16,507,875.15 × 8,485,826.10
4. Step 4: Simplify right side
   11,005,250.10x = 140,082,957,803,411.41
5. Step 5: Solve for x
   x = 140,082,957,803,411.41/11,005,250.10
6. Step 6: Final answer
   x = 12,728,739.15