Finding the Fourth Proportional to 92,445.42, 138,556.68 and 42,456.54

Step by Step Solution

1. Step 1: Write the proportion equation
   92,445.42 : 138,556.68 = 42,456.54 : x
2. Step 2: Convert to fraction form
   92,445.42/138,556.68 = 42,456.54/x
3. Step 3: Cross multiply
   92,445.42x = 138,556.68 × 42,456.54
4. Step 4: Simplify right side
   92,445.42x = 5,882,637,226.69
5. Step 5: Solve for x
   x = 5,882,637,226.69/92,445.42
6. Step 6: Final answer
   x = 63,633.63