Finding the Fourth Proportional to 108,857.15, 150,196.58 and 63,509.25

Step by Step Solution

1. Step 1: Write the proportion equation
   108,857.15 : 150,196.58 = 63,509.25 : x
2. Step 2: Convert to fraction form
   108,857.15/150,196.58 = 63,509.25/x
3. Step 3: Cross multiply
   108,857.15x = 150,196.58 × 63,509.25
4. Step 4: Simplify right side
   108,857.15x = 9,538,871,830.82
5. Step 5: Solve for x
   x = 9,538,871,830.82/108,857.15
6. Step 6: Final answer
   x = 87,627.43