Finding the Fourth Proportional to 72,804.24, 109,150.46 and 65,386.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,804.24 : 109,150.46 = 65,386.05 : x
2. Step 2: Convert to fraction form
   72,804.24/109,150.46 = 65,386.05/x
3. Step 3: Cross multiply
   72,804.24x = 109,150.46 × 65,386.05
4. Step 4: Simplify right side
   72,804.24x = 7,136,917,108.15
5. Step 5: Solve for x
   x = 7,136,917,108.15/72,804.24
6. Step 6: Final answer
   x = 98,028.87