Finding the Fourth Proportional to 245,012.42, 367,026.55 and 111,709.31

Step by Step Solution

1. Step 1: Write the proportion equation
   245,012.42 : 367,026.55 = 111,709.31 : x
2. Step 2: Convert to fraction form
   245,012.42/367,026.55 = 111,709.31/x
3. Step 3: Cross multiply
   245,012.42x = 367,026.55 × 111,709.31
4. Step 4: Simplify right side
   245,012.42x = 41,000,280,817.05
5. Step 5: Solve for x
   x = 41,000,280,817.05/245,012.42
6. Step 6: Final answer
   x = 167,339.60