Finding the Fourth Proportional to 91,576.78, 137,404.69 and 49,448.48

Step by Step Solution

1. Step 1: Write the proportion equation
   91,576.78 : 137,404.69 = 49,448.48 : x
2. Step 2: Convert to fraction form
   91,576.78/137,404.69 = 49,448.48/x
3. Step 3: Cross multiply
   91,576.78x = 137,404.69 × 49,448.48
4. Step 4: Simplify right side
   91,576.78x = 6,794,452,254.73
5. Step 5: Solve for x
   x = 6,794,452,254.73/91,576.78
6. Step 6: Final answer
   x = 74,194.05