Finding the Fourth Proportional to 116,128.58, 160,259.18 and 65,152.58

Step by Step Solution

1. Step 1: Write the proportion equation
   116,128.58 : 160,259.18 = 65,152.58 : x
2. Step 2: Convert to fraction form
   116,128.58/160,259.18 = 65,152.58/x
3. Step 3: Cross multiply
   116,128.58x = 160,259.18 × 65,152.58
4. Step 4: Simplify right side
   116,128.58x = 10,441,297,918.63
5. Step 5: Solve for x
   x = 10,441,297,918.63/116,128.58
6. Step 6: Final answer
   x = 89,911.53