Finding the Fourth Proportional to 12,908.96, 19,346.43 and 5,113.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,908.96 : 19,346.43 = 5,113.52 : x
2. Step 2: Convert to fraction form
   12,908.96/19,346.43 = 5,113.52/x
3. Step 3: Cross multiply
   12,908.96x = 19,346.43 × 5,113.52
4. Step 4: Simplify right side
   12,908.96x = 98,928,356.73
5. Step 5: Solve for x
   x = 98,928,356.73/12,908.96
6. Step 6: Final answer
   x = 7,663.54