Finding the Fourth Proportional to 12,042,646.89, 18,059,920.94 and 4,364,684.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,042,646.89 : 18,059,920.94 = 4,364,684.49 : x
2. Step 2: Convert to fraction form
   12,042,646.89/18,059,920.94 = 4,364,684.49/x
3. Step 3: Cross multiply
   12,042,646.89x = 18,059,920.94 × 4,364,684.49
4. Step 4: Simplify right side
   12,042,646.89x = 78,825,856,871,529.30
5. Step 5: Solve for x
   x = 78,825,856,871,529.30/12,042,646.89
6. Step 6: Final answer
   x = 6,545,559.10