Finding the Fourth Proportional to 12,139,632.72, 18,210,674.80 and 3,941,932.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,139,632.72 : 18,210,674.80 = 3,941,932.18 : x
2. Step 2: Convert to fraction form
   12,139,632.72/18,210,674.80 = 3,941,932.18/x
3. Step 3: Cross multiply
   12,139,632.72x = 18,210,674.80 × 3,941,932.18
4. Step 4: Simplify right side
   12,139,632.72x = 71,785,245,013,635.06
5. Step 5: Solve for x
   x = 71,785,245,013,635.06/12,139,632.72
6. Step 6: Final answer
   x = 5,913,296.28