Finding the Fourth Proportional to 115,446.50, 159,342.72 and 67,715.22

Step by Step Solution

1. Step 1: Write the proportion equation
   115,446.50 : 159,342.72 = 67,715.22 : x
2. Step 2: Convert to fraction form
   115,446.50/159,342.72 = 67,715.22/x
3. Step 3: Cross multiply
   115,446.50x = 159,342.72 × 67,715.22
4. Step 4: Simplify right side
   115,446.50x = 10,789,927,340.20
5. Step 5: Solve for x
   x = 10,789,927,340.20/115,446.50
6. Step 6: Final answer
   x = 93,462.58