Finding the Fourth Proportional to 72,598.48, 108,802.16 and 67,863.20

Step by Step Solution

1. Step 1: Write the proportion equation
   72,598.48 : 108,802.16 = 67,863.20 : x
2. Step 2: Convert to fraction form
   72,598.48/108,802.16 = 67,863.20/x
3. Step 3: Cross multiply
   72,598.48x = 108,802.16 × 67,863.20
4. Step 4: Simplify right side
   72,598.48x = 7,383,662,744.51
5. Step 5: Solve for x
   x = 7,383,662,744.51/72,598.48
6. Step 6: Final answer
   x = 101,705.47