Finding the Fourth Proportional to 116,272.25, 160,457.72 and 65,287.82

Step by Step Solution

1. Step 1: Write the proportion equation
   116,272.25 : 160,457.72 = 65,287.82 : x
2. Step 2: Convert to fraction form
   116,272.25/160,457.72 = 65,287.82/x
3. Step 3: Cross multiply
   116,272.25x = 160,457.72 × 65,287.82
4. Step 4: Simplify right side
   116,272.25x = 10,475,933,612.24
5. Step 5: Solve for x
   x = 10,475,933,612.24/116,272.25
6. Step 6: Final answer
   x = 90,098.32