Finding the Fourth Proportional to 96,081.40, 132,579.90 and 53,641.72

Step by Step Solution

1. Step 1: Write the proportion equation
   96,081.40 : 132,579.90 = 53,641.72 : x
2. Step 2: Convert to fraction form
   96,081.40/132,579.90 = 53,641.72/x
3. Step 3: Cross multiply
   96,081.40x = 132,579.90 × 53,641.72
4. Step 4: Simplify right side
   96,081.40x = 7,111,813,873.43
5. Step 5: Solve for x
   x = 7,111,813,873.43/96,081.40
6. Step 6: Final answer
   x = 74,018.63