Finding the Fourth Proportional to 12,736.61, 19,101.63 and 3,967.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,736.61 : 19,101.63 = 3,967.01 : x
2. Step 2: Convert to fraction form
   12,736.61/19,101.63 = 3,967.01/x
3. Step 3: Cross multiply
   12,736.61x = 19,101.63 × 3,967.01
4. Step 4: Simplify right side
   12,736.61x = 75,776,357.23
5. Step 5: Solve for x
   x = 75,776,357.23/12,736.61
6. Step 6: Final answer
   x = 5,949.49