Finding the Fourth Proportional to 109,399.84, 164,162.01 and 87,353.31

Step by Step Solution

1. Step 1: Write the proportion equation
   109,399.84 : 164,162.01 = 87,353.31 : x
2. Step 2: Convert to fraction form
   109,399.84/164,162.01 = 87,353.31/x
3. Step 3: Cross multiply
   109,399.84x = 164,162.01 × 87,353.31
4. Step 4: Simplify right side
   109,399.84x = 14,340,095,401.57
5. Step 5: Solve for x
   x = 14,340,095,401.57/109,399.84
6. Step 6: Final answer
   x = 131,079.67