Finding the Fourth Proportional to 309,561.94, 464,389.04 and 109,865.60

Step by Step Solution

1. Step 1: Write the proportion equation
   309,561.94 : 464,389.04 = 109,865.60 : x
2. Step 2: Convert to fraction form
   309,561.94/464,389.04 = 109,865.60/x
3. Step 3: Cross multiply
   309,561.94x = 464,389.04 × 109,865.60
4. Step 4: Simplify right side
   309,561.94x = 51,020,382,089.10
5. Step 5: Solve for x
   x = 51,020,382,089.10/309,561.94
6. Step 6: Final answer
   x = 164,814.78