Finding the Fourth Proportional to 86,899.56, 119,923.92 and 49,173

Step by Step Solution

1. Step 1: Write the proportion equation
   86,899.56 : 119,923.92 = 49,173 : x
2. Step 2: Convert to fraction form
   86,899.56/119,923.92 = 49,173/x
3. Step 3: Cross multiply
   86,899.56x = 119,923.92 × 49,173
4. Step 4: Simplify right side
   86,899.56x = 5,897,018,918.16
5. Step 5: Solve for x
   x = 5,897,018,918.16/86,899.56
6. Step 6: Final answer
   x = 67,860.17