Finding the Fourth Proportional to 162,441.60, 243,717.72 and 87,568.98

Step by Step Solution

1. Step 1: Write the proportion equation
   162,441.60 : 243,717.72 = 87,568.98 : x
2. Step 2: Convert to fraction form
   162,441.60/243,717.72 = 87,568.98/x
3. Step 3: Cross multiply
   162,441.60x = 243,717.72 × 87,568.98
4. Step 4: Simplify right side
   162,441.60x = 21,342,112,148.33
5. Step 5: Solve for x
   x = 21,342,112,148.33/162,441.60
6. Step 6: Final answer
   x = 131,383.29