Finding the Fourth Proportional to 91,725.33, 137,578.78 and 25,172.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91,725.33 : 137,578.78 = 25,172.16 : x
2. Step 2: Convert to fraction form
   91,725.33/137,578.78 = 25,172.16/x
3. Step 3: Cross multiply
   91,725.33x = 137,578.78 × 25,172.16
4. Step 4: Simplify right side
   91,725.33x = 3,463,155,062.76
5. Step 5: Solve for x
   x = 3,463,155,062.76/91,725.33
6. Step 6: Final answer
   x = 37,755.71