Finding the Fourth Proportional to 108,870, 163,305.12 and 43,206

Step by Step Solution

1. Step 1: Write the proportion equation
   108,870 : 163,305.12 = 43,206 : x
2. Step 2: Convert to fraction form
   108,870/163,305.12 = 43,206/x
3. Step 3: Cross multiply
   108,870x = 163,305.12 × 43,206
4. Step 4: Simplify right side
   108,870x = 7,055,761,014.72
5. Step 5: Solve for x
   x = 7,055,761,014.72/108,870
6. Step 6: Final answer
   x = 64,809.05