Finding the Fourth Proportional to 270,492.72, 405,475.42 and 112,766.28

Step by Step Solution

1. Step 1: Write the proportion equation
   270,492.72 : 405,475.42 = 112,766.28 : x
2. Step 2: Convert to fraction form
   270,492.72/405,475.42 = 112,766.28/x
3. Step 3: Cross multiply
   270,492.72x = 405,475.42 × 112,766.28
4. Step 4: Simplify right side
   270,492.72x = 45,723,953,153.83
5. Step 5: Solve for x
   x = 45,723,953,153.83/270,492.72
6. Step 6: Final answer
   x = 169,039.50