Finding the Fourth Proportional to 13,535.92, 18,682.72 and 7,948.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,535.92 : 18,682.72 = 7,948.72 : x
2. Step 2: Convert to fraction form
   13,535.92/18,682.72 = 7,948.72/x
3. Step 3: Cross multiply
   13,535.92x = 18,682.72 × 7,948.72
4. Step 4: Simplify right side
   13,535.92x = 148,503,710.12
5. Step 5: Solve for x
   x = 148,503,710.12/13,535.92
6. Step 6: Final answer
   x = 10,971.08