Finding the Fourth Proportional to 92,842.38, 139,241.12 and 42,874.43

Step by Step Solution

1. Step 1: Write the proportion equation
   92,842.38 : 139,241.12 = 42,874.43 : x
2. Step 2: Convert to fraction form
   92,842.38/139,241.12 = 42,874.43/x
3. Step 3: Cross multiply
   92,842.38x = 139,241.12 × 42,874.43
4. Step 4: Simplify right side
   92,842.38x = 5,969,882,741.98
5. Step 5: Solve for x
   x = 5,969,882,741.98/92,842.38
6. Step 6: Final answer
   x = 64,301.27