Finding the Fourth Proportional to 132,429.58, 182,792.32 and 87,142.48

Step by Step Solution

1. Step 1: Write the proportion equation
   132,429.58 : 182,792.32 = 87,142.48 : x
2. Step 2: Convert to fraction form
   132,429.58/182,792.32 = 87,142.48/x
3. Step 3: Cross multiply
   132,429.58x = 182,792.32 × 87,142.48
4. Step 4: Simplify right side
   132,429.58x = 15,928,976,089.75
5. Step 5: Solve for x
   x = 15,928,976,089.75/132,429.58
6. Step 6: Final answer
   x = 120,282.61