Finding the Fourth Proportional to 113,285.87, 156,322.38 and 65,530.29

Step by Step Solution

1. Step 1: Write the proportion equation
   113,285.87 : 156,322.38 = 65,530.29 : x
2. Step 2: Convert to fraction form
   113,285.87/156,322.38 = 65,530.29/x
3. Step 3: Cross multiply
   113,285.87x = 156,322.38 × 65,530.29
4. Step 4: Simplify right side
   113,285.87x = 10,243,850,894.89
5. Step 5: Solve for x
   x = 10,243,850,894.89/113,285.87
6. Step 6: Final answer
   x = 90,424.79