Finding the Fourth Proportional to 72,258.63, 108,247.68 and 53,248.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,258.63 : 108,247.68 = 53,248.76 : x
2. Step 2: Convert to fraction form
   72,258.63/108,247.68 = 53,248.76/x
3. Step 3: Cross multiply
   72,258.63x = 108,247.68 × 53,248.76
4. Step 4: Simplify right side
   72,258.63x = 5,764,055,003.50
5. Step 5: Solve for x
   x = 5,764,055,003.50/72,258.63
6. Step 6: Final answer
   x = 79,769.78