Finding the Fourth Proportional to 72,100.36, 108,133.18 and 19,510.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,100.36 : 108,133.18 = 19,510.28 : x
2. Step 2: Convert to fraction form
   72,100.36/108,133.18 = 19,510.28/x
3. Step 3: Cross multiply
   72,100.36x = 108,133.18 × 19,510.28
4. Step 4: Simplify right side
   72,100.36x = 2,109,708,619.09
5. Step 5: Solve for x
   x = 2,109,708,619.09/72,100.36
6. Step 6: Final answer
   x = 29,260.72