Finding the Fourth Proportional to 12,700.98, 19,053.27 and 3,936.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.98 : 19,053.27 = 3,936.63 : x
2. Step 2: Convert to fraction form
   12,700.98/19,053.27 = 3,936.63/x
3. Step 3: Cross multiply
   12,700.98x = 19,053.27 × 3,936.63
4. Step 4: Simplify right side
   12,700.98x = 75,005,674.28
5. Step 5: Solve for x
   x = 75,005,674.28/12,700.98
6. Step 6: Final answer
   x = 5,905.50