Finding the Fourth Proportional to 51,204,359.82, 76,806,617.49 and 20,912,222.82

Step by Step Solution

1. Step 1: Write the proportion equation
   51,204,359.82 : 76,806,617.49 = 20,912,222.82 : x
2. Step 2: Convert to fraction form
   51,204,359.82/76,806,617.49 = 20,912,222.82/x
3. Step 3: Cross multiply
   51,204,359.82x = 76,806,617.49 × 20,912,222.82
4. Step 4: Simplify right side
   51,204,359.82x = 1,606,197,099,001,389
5. Step 5: Solve for x
   x = 1,606,197,099,001,389/51,204,359.82
6. Step 6: Final answer
   x = 31,368,365.99