Finding the Fourth Proportional to 42,496.46, 63,686.37 and 21,676.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,496.46 : 63,686.37 = 21,676.22 : x
2. Step 2: Convert to fraction form
   42,496.46/63,686.37 = 21,676.22/x
3. Step 3: Cross multiply
   42,496.46x = 63,686.37 × 21,676.22
4. Step 4: Simplify right side
   42,496.46x = 1,380,479,767.12
5. Step 5: Solve for x
   x = 1,380,479,767.12/42,496.46
6. Step 6: Final answer
   x = 32,484.58