Finding the Fourth Proportional to 78,786.73, 108,688.17 and 53,302.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,786.73 : 108,688.17 = 53,302.06 : x
2. Step 2: Convert to fraction form
   78,786.73/108,688.17 = 53,302.06/x
3. Step 3: Cross multiply
   78,786.73x = 108,688.17 × 53,302.06
4. Step 4: Simplify right side
   78,786.73x = 5,793,303,358.63
5. Step 5: Solve for x
   x = 5,793,303,358.63/78,786.73
6. Step 6: Final answer
   x = 73,531.46