Finding the Fourth Proportional to 92,404.34, 138,491.67 and 42,431.42

Step by Step Solution

1. Step 1: Write the proportion equation
   92,404.34 : 138,491.67 = 42,431.42 : x
2. Step 2: Convert to fraction form
   92,404.34/138,491.67 = 42,431.42/x
3. Step 3: Cross multiply
   92,404.34x = 138,491.67 × 42,431.42
4. Step 4: Simplify right side
   92,404.34x = 5,876,398,216.27
5. Step 5: Solve for x
   x = 5,876,398,216.27/92,404.34
6. Step 6: Final answer
   x = 63,594.40