Finding the Fourth Proportional to 105,499.77, 158,173.10 and 49,308.45

Step by Step Solution

1. Step 1: Write the proportion equation
   105,499.77 : 158,173.10 = 49,308.45 : x
2. Step 2: Convert to fraction form
   105,499.77/158,173.10 = 49,308.45/x
3. Step 3: Cross multiply
   105,499.77x = 158,173.10 × 49,308.45
4. Step 4: Simplify right side
   105,499.77x = 7,799,270,015.27
5. Step 5: Solve for x
   x = 7,799,270,015.27/105,499.77
6. Step 6: Final answer
   x = 73,926.89