Finding the Fourth Proportional to 108,987.72, 150,501.42 and 68,772.84

Step by Step Solution

1. Step 1: Write the proportion equation
   108,987.72 : 150,501.42 = 68,772.84 : x
2. Step 2: Convert to fraction form
   108,987.72/150,501.42 = 68,772.84/x
3. Step 3: Cross multiply
   108,987.72x = 150,501.42 × 68,772.84
4. Step 4: Simplify right side
   108,987.72x = 10,350,410,077.43
5. Step 5: Solve for x
   x = 10,350,410,077.43/108,987.72
6. Step 6: Final answer
   x = 94,968.59