Finding the Fourth Proportional to 78,662.48, 117,991.56 and 19,496.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,662.48 : 117,991.56 = 19,496.84 : x
2. Step 2: Convert to fraction form
   78,662.48/117,991.56 = 19,496.84/x
3. Step 3: Cross multiply
   78,662.48x = 117,991.56 × 19,496.84
4. Step 4: Simplify right side
   78,662.48x = 2,300,462,934.76
5. Step 5: Solve for x
   x = 2,300,462,934.76/78,662.48
6. Step 6: Final answer
   x = 29,244.73