Finding the Fourth Proportional to 108,942.90, 150,341.28 and 61,196.28

Step by Step Solution

1. Step 1: Write the proportion equation
   108,942.90 : 150,341.28 = 61,196.28 : x
2. Step 2: Convert to fraction form
   108,942.90/150,341.28 = 61,196.28/x
3. Step 3: Cross multiply
   108,942.90x = 150,341.28 × 61,196.28
4. Step 4: Simplify right side
   108,942.90x = 9,200,327,066.44
5. Step 5: Solve for x
   x = 9,200,327,066.44/108,942.90
6. Step 6: Final answer
   x = 84,450.91