Finding the Fourth Proportional to 99,749, 137,653.62 and 55,037

Step by Step Solution

1. Step 1: Write the proportion equation
   99,749 : 137,653.62 = 55,037 : x
2. Step 2: Convert to fraction form
   99,749/137,653.62 = 55,037/x
3. Step 3: Cross multiply
   99,749x = 137,653.62 × 55,037
4. Step 4: Simplify right side
   99,749x = 7,576,042,283.94
5. Step 5: Solve for x
   x = 7,576,042,283.94/99,749
6. Step 6: Final answer
   x = 75,951.06