Finding the Fourth Proportional to 140,382.52, 210,268.71 and 87,087.56

Step by Step Solution

1. Step 1: Write the proportion equation
   140,382.52 : 210,268.71 = 87,087.56 : x
2. Step 2: Convert to fraction form
   140,382.52/210,268.71 = 87,087.56/x
3. Step 3: Cross multiply
   140,382.52x = 210,268.71 × 87,087.56
4. Step 4: Simplify right side
   140,382.52x = 18,311,787,846.90
5. Step 5: Solve for x
   x = 18,311,787,846.90/140,382.52
6. Step 6: Final answer
   x = 130,442.08