Finding the Fourth Proportional to 162,401.27, 243,596.43 and 57,217.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,401.27 : 243,596.43 = 57,217.50 : x
2. Step 2: Convert to fraction form
   162,401.27/243,596.43 = 57,217.50/x
3. Step 3: Cross multiply
   162,401.27x = 243,596.43 × 57,217.50
4. Step 4: Simplify right side
   162,401.27x = 13,937,978,733.53
5. Step 5: Solve for x
   x = 13,937,978,733.53/162,401.27
6. Step 6: Final answer
   x = 85,824.32