Finding the Fourth Proportional to 115,345, 159,185.82 and 65,053.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,345 : 159,185.82 = 65,053.72 : x
2. Step 2: Convert to fraction form
   115,345/159,185.82 = 65,053.72/x
3. Step 3: Cross multiply
   115,345x = 159,185.82 × 65,053.72
4. Step 4: Simplify right side
   115,345x = 10,355,629,762.25
5. Step 5: Solve for x
   x = 10,355,629,762.25/115,345
6. Step 6: Final answer
   x = 89,779.62