Finding the Fourth Proportional to 108,658.17, 149,979.55 and 65,630.82

Step by Step Solution

1. Step 1: Write the proportion equation
   108,658.17 : 149,979.55 = 65,630.82 : x
2. Step 2: Convert to fraction form
   108,658.17/149,979.55 = 65,630.82/x
3. Step 3: Cross multiply
   108,658.17x = 149,979.55 × 65,630.82
4. Step 4: Simplify right side
   108,658.17x = 9,843,280,685.65
5. Step 5: Solve for x
   x = 9,843,280,685.65/108,658.17
6. Step 6: Final answer
   x = 90,589.42