Finding the Fourth Proportional to 105,500.68, 158,141.66 and 65,967.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,500.68 : 158,141.66 = 65,967.02 : x
2. Step 2: Convert to fraction form
   105,500.68/158,141.66 = 65,967.02/x
3. Step 3: Cross multiply
   105,500.68x = 158,141.66 × 65,967.02
4. Step 4: Simplify right side
   105,500.68x = 10,432,134,048.05
5. Step 5: Solve for x
   x = 10,432,134,048.05/105,500.68
6. Step 6: Final answer
   x = 98,882.15