Finding the Fourth Proportional to 99,556.42, 137,387.82 and 54,844.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,556.42 : 137,387.82 = 54,844.42 : x
2. Step 2: Convert to fraction form
   99,556.42/137,387.82 = 54,844.42/x
3. Step 3: Cross multiply
   99,556.42x = 137,387.82 × 54,844.42
4. Step 4: Simplify right side
   99,556.42x = 7,534,955,302.96
5. Step 5: Solve for x
   x = 7,534,955,302.96/99,556.42
6. Step 6: Final answer
   x = 75,685.28