Finding the Fourth Proportional to 111,411.60, 167,265.72 and 64,698

Step by Step Solution

1. Step 1: Write the proportion equation
   111,411.60 : 167,265.72 = 64,698 : x
2. Step 2: Convert to fraction form
   111,411.60/167,265.72 = 64,698/x
3. Step 3: Cross multiply
   111,411.60x = 167,265.72 × 64,698
4. Step 4: Simplify right side
   111,411.60x = 10,821,757,552.56
5. Step 5: Solve for x
   x = 10,821,757,552.56/111,411.60
6. Step 6: Final answer
   x = 97,133.13