Finding the Fourth Proportional to 108,488.72, 162,734.16 and 52,315.76

Step by Step Solution

1. Step 1: Write the proportion equation
   108,488.72 : 162,734.16 = 52,315.76 : x
2. Step 2: Convert to fraction form
   108,488.72/162,734.16 = 52,315.76/x
3. Step 3: Cross multiply
   108,488.72x = 162,734.16 × 52,315.76
4. Step 4: Simplify right side
   108,488.72x = 8,513,561,258.36
5. Step 5: Solve for x
   x = 8,513,561,258.36/108,488.72
6. Step 6: Final answer
   x = 78,474.16