Finding the Fourth Proportional to 12,320,105.54, 18,467,126.56 and 4,640,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,320,105.54 : 18,467,126.56 = 4,640,427.50 : x
2. Step 2: Convert to fraction form
   12,320,105.54/18,467,126.56 = 4,640,427.50/x
3. Step 3: Cross multiply
   12,320,105.54x = 18,467,126.56 × 4,640,427.50
4. Step 4: Simplify right side
   12,320,105.54x = 85,695,361,935,004.39
5. Step 5: Solve for x
   x = 85,695,361,935,004.39/12,320,105.54
6. Step 6: Final answer
   x = 6,955,732.78