Finding the Fourth Proportional to 12,700.92, 17,535.83 and 7,928.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.92 : 17,535.83 = 7,928.14 : x
2. Step 2: Convert to fraction form
   12,700.92/17,535.83 = 7,928.14/x
3. Step 3: Cross multiply
   12,700.92x = 17,535.83 × 7,928.14
4. Step 4: Simplify right side
   12,700.92x = 139,026,427.58
5. Step 5: Solve for x
   x = 139,026,427.58/12,700.92
6. Step 6: Final answer
   x = 10,946.17