Finding the Fourth Proportional to 78,723.83, 118,085.31 and 19,559.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,723.83 : 118,085.31 = 19,559.48 : x
2. Step 2: Convert to fraction form
   78,723.83/118,085.31 = 19,559.48/x
3. Step 3: Cross multiply
   78,723.83x = 118,085.31 × 19,559.48
4. Step 4: Simplify right side
   78,723.83x = 2,309,686,668.81
5. Step 5: Solve for x
   x = 2,309,686,668.81/78,723.83
6. Step 6: Final answer
   x = 29,339.10