Finding the Fourth Proportional to 345,086.49, 517,681.98 and 108,406.92

Step by Step Solution

1. Step 1: Write the proportion equation
   345,086.49 : 517,681.98 = 108,406.92 : x
2. Step 2: Convert to fraction form
   345,086.49/517,681.98 = 108,406.92/x
3. Step 3: Cross multiply
   345,086.49x = 517,681.98 × 108,406.92
4. Step 4: Simplify right side
   345,086.49x = 56,120,308,991.30
5. Step 5: Solve for x
   x = 56,120,308,991.30/345,086.49
6. Step 6: Final answer
   x = 162,626.79