Finding the Fourth Proportional to 142,156.82, 213,050.66 and 57,818.81

Step by Step Solution

1. Step 1: Write the proportion equation
   142,156.82 : 213,050.66 = 57,818.81 : x
2. Step 2: Convert to fraction form
   142,156.82/213,050.66 = 57,818.81/x
3. Step 3: Cross multiply
   142,156.82x = 213,050.66 × 57,818.81
4. Step 4: Simplify right side
   142,156.82x = 12,318,335,874.45
5. Step 5: Solve for x
   x = 12,318,335,874.45/142,156.82
6. Step 6: Final answer
   x = 86,653.15