Finding the Fourth Proportional to 105,778.72, 157,568.63 and 100,048.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,778.72 : 157,568.63 = 100,048.98 : x
2. Step 2: Convert to fraction form
   105,778.72/157,568.63 = 100,048.98/x
3. Step 3: Cross multiply
   105,778.72x = 157,568.63 × 100,048.98
4. Step 4: Simplify right side
   105,778.72x = 15,764,580,711.50
5. Step 5: Solve for x
   x = 15,764,580,711.50/105,778.72
6. Step 6: Final answer
   x = 149,033.57