Finding the Fourth Proportional to 78,744.30, 108,668.61 and 46,931.65

Step by Step Solution

1. Step 1: Write the proportion equation
   78,744.30 : 108,668.61 = 46,931.65 : x
2. Step 2: Convert to fraction form
   78,744.30/108,668.61 = 46,931.65/x
3. Step 3: Cross multiply
   78,744.30x = 108,668.61 × 46,931.65
4. Step 4: Simplify right side
   78,744.30x = 5,099,997,642.09
5. Step 5: Solve for x
   x = 5,099,997,642.09/78,744.30
6. Step 6: Final answer
   x = 64,766.56