Finding the Fourth Proportional to 96,080.40, 132,578.52 and 53,640.72

Step by Step Solution

1. Step 1: Write the proportion equation
   96,080.40 : 132,578.52 = 53,640.72 : x
2. Step 2: Convert to fraction form
   96,080.40/132,578.52 = 53,640.72/x
3. Step 3: Cross multiply
   96,080.40x = 132,578.52 × 53,640.72
4. Step 4: Simplify right side
   96,080.40x = 7,111,607,269.33
5. Step 5: Solve for x
   x = 7,111,607,269.33/96,080.40
6. Step 6: Final answer
   x = 74,017.25