Finding the Fourth Proportional to 106,105.59, 159,059.43 and 72,841.32

Step by Step Solution

1. Step 1: Write the proportion equation
   106,105.59 : 159,059.43 = 72,841.32 : x
2. Step 2: Convert to fraction form
   106,105.59/159,059.43 = 72,841.32/x
3. Step 3: Cross multiply
   106,105.59x = 159,059.43 × 72,841.32
4. Step 4: Simplify right side
   106,105.59x = 11,586,098,839.65
5. Step 5: Solve for x
   x = 11,586,098,839.65/106,105.59
6. Step 6: Final answer
   x = 109,194.05