Finding the Fourth Proportional to 118,698.89, 163,815.59 and 70,951.21

Step by Step Solution

1. Step 1: Write the proportion equation
   118,698.89 : 163,815.59 = 70,951.21 : x
2. Step 2: Convert to fraction form
   118,698.89/163,815.59 = 70,951.21/x
3. Step 3: Cross multiply
   118,698.89x = 163,815.59 × 70,951.21
4. Step 4: Simplify right side
   118,698.89x = 11,622,914,095.20
5. Step 5: Solve for x
   x = 11,622,914,095.20/118,698.89
6. Step 6: Final answer
   x = 97,919.32