Finding the Fourth Proportional to 111,722.72, 167,359.70 and 51,667.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,722.72 : 167,359.70 = 51,667.02 : x
2. Step 2: Convert to fraction form
   111,722.72/167,359.70 = 51,667.02/x
3. Step 3: Cross multiply
   111,722.72x = 167,359.70 × 51,667.02
4. Step 4: Simplify right side
   111,722.72x = 8,646,976,419.53
5. Step 5: Solve for x
   x = 8,646,976,419.53/111,722.72
6. Step 6: Final answer
   x = 77,396.76