Finding the Fourth Proportional to 111,409.60, 167,262.72 and 64,696

Step by Step Solution

1. Step 1: Write the proportion equation
   111,409.60 : 167,262.72 = 64,696 : x
2. Step 2: Convert to fraction form
   111,409.60/167,262.72 = 64,696/x
3. Step 3: Cross multiply
   111,409.60x = 167,262.72 × 64,696
4. Step 4: Simplify right side
   111,409.60x = 10,821,228,933.12
5. Step 5: Solve for x
   x = 10,821,228,933.12/111,409.60
6. Step 6: Final answer
   x = 97,130.13