Finding the Fourth Proportional to 91,025.12, 136,544.52 and 28,694

Step by Step Solution

1. Step 1: Write the proportion equation
   91,025.12 : 136,544.52 = 28,694 : x
2. Step 2: Convert to fraction form
   91,025.12/136,544.52 = 28,694/x
3. Step 3: Cross multiply
   91,025.12x = 136,544.52 × 28,694
4. Step 4: Simplify right side
   91,025.12x = 3,918,008,456.88
5. Step 5: Solve for x
   x = 3,918,008,456.88/91,025.12
6. Step 6: Final answer
   x = 43,043.16