Finding the Fourth Proportional to 108,386.39, 149,614.74 and 72,563.33

Step by Step Solution

1. Step 1: Write the proportion equation
   108,386.39 : 149,614.74 = 72,563.33 : x
2. Step 2: Convert to fraction form
   108,386.39/149,614.74 = 72,563.33/x
3. Step 3: Cross multiply
   108,386.39x = 149,614.74 × 72,563.33
4. Step 4: Simplify right side
   108,386.39x = 10,856,543,003.41
5. Step 5: Solve for x
   x = 10,856,543,003.41/108,386.39
6. Step 6: Final answer
   x = 100,165.19