Finding the Fourth Proportional to 99,544, 137,370.72 and 54,832

Step by Step Solution

1. Step 1: Write the proportion equation
   99,544 : 137,370.72 = 54,832 : x
2. Step 2: Convert to fraction form
   99,544/137,370.72 = 54,832/x
3. Step 3: Cross multiply
   99,544x = 137,370.72 × 54,832
4. Step 4: Simplify right side
   99,544x = 7,532,311,319.04
5. Step 5: Solve for x
   x = 7,532,311,319.04/99,544
6. Step 6: Final answer
   x = 75,668.16