Finding the Fourth Proportional to 89,173.86, 133,759.42 and 21,706.39

Step by Step Solution

1. Step 1: Write the proportion equation
   89,173.86 : 133,759.42 = 21,706.39 : x
2. Step 2: Convert to fraction form
   89,173.86/133,759.42 = 21,706.39/x
3. Step 3: Cross multiply
   89,173.86x = 133,759.42 × 21,706.39
4. Step 4: Simplify right side
   89,173.86x = 2,903,434,136.69
5. Step 5: Solve for x
   x = 2,903,434,136.69/89,173.86
6. Step 6: Final answer
   x = 32,559.25