Finding the Fourth Proportional to 118,978.92, 164,196.06 and 71,223.03

Step by Step Solution

1. Step 1: Write the proportion equation
   118,978.92 : 164,196.06 = 71,223.03 : x
2. Step 2: Convert to fraction form
   118,978.92/164,196.06 = 71,223.03/x
3. Step 3: Cross multiply
   118,978.92x = 164,196.06 × 71,223.03
4. Step 4: Simplify right side
   118,978.92x = 11,694,540,907.26
5. Step 5: Solve for x
   x = 11,694,540,907.26/118,978.92
6. Step 6: Final answer
   x = 98,290.86