Finding the Fourth Proportional to 111,185.16, 166,638.01 and 79,429.92

Step by Step Solution

1. Step 1: Write the proportion equation
   111,185.16 : 166,638.01 = 79,429.92 : x
2. Step 2: Convert to fraction form
   111,185.16/166,638.01 = 79,429.92/x
3. Step 3: Cross multiply
   111,185.16x = 166,638.01 × 79,429.92
4. Step 4: Simplify right side
   111,185.16x = 13,236,043,803.26
5. Step 5: Solve for x
   x = 13,236,043,803.26/111,185.16
6. Step 6: Final answer
   x = 119,045.06