Finding the Fourth Proportional to 35,275.89, 48,688.25 and 21,136.94

Step by Step Solution

1. Step 1: Write the proportion equation
   35,275.89 : 48,688.25 = 21,136.94 : x
2. Step 2: Convert to fraction form
   35,275.89/48,688.25 = 21,136.94/x
3. Step 3: Cross multiply
   35,275.89x = 48,688.25 × 21,136.94
4. Step 4: Simplify right side
   35,275.89x = 1,029,120,269.83
5. Step 5: Solve for x
   x = 1,029,120,269.83/35,275.89
6. Step 6: Final answer
   x = 29,173.47