Finding the Fourth Proportional to 12,174,621.42, 18,274,238.46 and 10,798,778.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,174,621.42 : 18,274,238.46 = 10,798,778.10 : x
2. Step 2: Convert to fraction form
   12,174,621.42/18,274,238.46 = 10,798,778.10/x
3. Step 3: Cross multiply
   12,174,621.42x = 18,274,238.46 × 10,798,778.10
4. Step 4: Simplify right side
   12,174,621.42x = 197,339,446,076,025.72
5. Step 5: Solve for x
   x = 197,339,446,076,025.72/12,174,621.42
6. Step 6: Final answer
   x = 16,209,082.75