Finding the Fourth Proportional to 12,789,628.69, 19,187,457.91 and 4,153,700.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,789,628.69 : 19,187,457.91 = 4,153,700.05 : x
2. Step 2: Convert to fraction form
   12,789,628.69/19,187,457.91 = 4,153,700.05/x
3. Step 3: Cross multiply
   12,789,628.69x = 19,187,457.91 × 4,153,700.05
4. Step 4: Simplify right side
   12,789,628.69x = 79,698,944,880,139.89
5. Step 5: Solve for x
   x = 79,698,944,880,139.89/12,789,628.69
6. Step 6: Final answer
   x = 6,231,529.22