Finding the Fourth Proportional to 78,646.89, 108,556.43 and 53,510.97

Step by Step Solution

1. Step 1: Write the proportion equation
   78,646.89 : 108,556.43 = 53,510.97 : x
2. Step 2: Convert to fraction form
   78,646.89/108,556.43 = 53,510.97/x
3. Step 3: Cross multiply
   78,646.89x = 108,556.43 × 53,510.97
4. Step 4: Simplify right side
   78,646.89x = 5,808,959,601.48
5. Step 5: Solve for x
   x = 5,808,959,601.48/78,646.89
6. Step 6: Final answer
   x = 73,861.28