Finding the Fourth Proportional to 91,196.37, 136,792.94 and 28,865.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,196.37 : 136,792.94 = 28,865.25 : x
2. Step 2: Convert to fraction form
   91,196.37/136,792.94 = 28,865.25/x
3. Step 3: Cross multiply
   91,196.37x = 136,792.94 × 28,865.25
4. Step 4: Simplify right side
   91,196.37x = 3,948,562,267.01
5. Step 5: Solve for x
   x = 3,948,562,267.01/91,196.37
6. Step 6: Final answer
   x = 43,297.36