Finding the Fourth Proportional to 42,550.29, 63,827.83 and 12,969.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,550.29 : 63,827.83 = 12,969.09 : x
2. Step 2: Convert to fraction form
   42,550.29/63,827.83 = 12,969.09/x
3. Step 3: Cross multiply
   42,550.29x = 63,827.83 × 12,969.09
4. Step 4: Simplify right side
   42,550.29x = 827,788,871.77
5. Step 5: Solve for x
   x = 827,788,871.77/42,550.29
6. Step 6: Final answer
   x = 19,454.36