Finding the Fourth Proportional to 42,096, 63,136.98 and 21,013.68

Step by Step Solution

1. Step 1: Write the proportion equation
   42,096 : 63,136.98 = 21,013.68 : x
2. Step 2: Convert to fraction form
   42,096/63,136.98 = 21,013.68/x
3. Step 3: Cross multiply
   42,096x = 63,136.98 × 21,013.68
4. Step 4: Simplify right side
   42,096x = 1,326,740,293.89
5. Step 5: Solve for x
   x = 1,326,740,293.89/42,096
6. Step 6: Final answer
   x = 31,517.02