Finding the Fourth Proportional to 78,499.28, 108,614.28 and 68,448.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,499.28 : 108,614.28 = 68,448.68 : x
2. Step 2: Convert to fraction form
   78,499.28/108,614.28 = 68,448.68/x
3. Step 3: Cross multiply
   78,499.28x = 108,614.28 × 68,448.68
4. Step 4: Simplify right side
   78,499.28x = 7,434,504,095.15
5. Step 5: Solve for x
   x = 7,434,504,095.15/78,499.28
6. Step 6: Final answer
   x = 94,707.93