Finding the Fourth Proportional to 99,256, 136,973.28 and 54,544

Step by Step Solution

1. Step 1: Write the proportion equation
   99,256 : 136,973.28 = 54,544 : x
2. Step 2: Convert to fraction form
   99,256/136,973.28 = 54,544/x
3. Step 3: Cross multiply
   99,256x = 136,973.28 × 54,544
4. Step 4: Simplify right side
   99,256x = 7,471,070,584.32
5. Step 5: Solve for x
   x = 7,471,070,584.32/99,256
6. Step 6: Final answer
   x = 75,270.72