Finding the Fourth Proportional to 78,908.18, 118,362.59 and 19,743.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,908.18 : 118,362.59 = 19,743.69 : x
2. Step 2: Convert to fraction form
   78,908.18/118,362.59 = 19,743.69/x
3. Step 3: Cross multiply
   78,908.18x = 118,362.59 × 19,743.69
4. Step 4: Simplify right side
   78,908.18x = 2,336,914,185.84
5. Step 5: Solve for x
   x = 2,336,914,185.84/78,908.18
6. Step 6: Final answer
   x = 29,615.61