Finding the Fourth Proportional to 161,448.76, 242,227.59 and 71,479.06

Step by Step Solution

1. Step 1: Write the proportion equation
   161,448.76 : 242,227.59 = 71,479.06 : x
2. Step 2: Convert to fraction form
   161,448.76/242,227.59 = 71,479.06/x
3. Step 3: Cross multiply
   161,448.76x = 242,227.59 × 71,479.06
4. Step 4: Simplify right side
   161,448.76x = 17,314,200,439.27
5. Step 5: Solve for x
   x = 17,314,200,439.27/161,448.76
6. Step 6: Final answer
   x = 107,242.70