Finding the Fourth Proportional to 111,418.60, 167,276.22 and 64,705

Step by Step Solution

1. Step 1: Write the proportion equation
   111,418.60 : 167,276.22 = 64,705 : x
2. Step 2: Convert to fraction form
   111,418.60/167,276.22 = 64,705/x
3. Step 3: Cross multiply
   111,418.60x = 167,276.22 × 64,705
4. Step 4: Simplify right side
   111,418.60x = 10,823,607,815.10
5. Step 5: Solve for x
   x = 10,823,607,815.10/111,418.60
6. Step 6: Final answer
   x = 97,143.64