Finding the Fourth Proportional to 99,287.25, 137,016.41 and 54,575.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99,287.25 : 137,016.41 = 54,575.25 : x
2. Step 2: Convert to fraction form
   99,287.25/137,016.41 = 54,575.25/x
3. Step 3: Cross multiply
   99,287.25x = 137,016.41 × 54,575.25
4. Step 4: Simplify right side
   99,287.25x = 7,477,704,556.98
5. Step 5: Solve for x
   x = 7,477,704,556.98/99,287.25
6. Step 6: Final answer
   x = 75,313.85