Finding the Fourth Proportional to 109,386.98, 150,952.82 and 61,640.27

Step by Step Solution

1. Step 1: Write the proportion equation
   109,386.98 : 150,952.82 = 61,640.27 : x
2. Step 2: Convert to fraction form
   109,386.98/150,952.82 = 61,640.27/x
3. Step 3: Cross multiply
   109,386.98x = 150,952.82 × 61,640.27
4. Step 4: Simplify right side
   109,386.98x = 9,304,771,519.10
5. Step 5: Solve for x
   x = 9,304,771,519.10/109,386.98
6. Step 6: Final answer
   x = 85,062.88