Finding the Fourth Proportional to 112,394.42, 167,399.06 and 111,851.21

Step by Step Solution

1. Step 1: Write the proportion equation
   112,394.42 : 167,399.06 = 111,851.21 : x
2. Step 2: Convert to fraction form
   112,394.42/167,399.06 = 111,851.21/x
3. Step 3: Cross multiply
   112,394.42x = 167,399.06 × 111,851.21
4. Step 4: Simplify right side
   112,394.42x = 18,723,786,017.61
5. Step 5: Solve for x
   x = 18,723,786,017.61/112,394.42
6. Step 6: Final answer
   x = 166,590.00