Finding the Fourth Proportional to 12,913.96, 19,353.92 and 5,118.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,913.96 : 19,353.92 = 5,118.52 : x
2. Step 2: Convert to fraction form
   12,913.96/19,353.92 = 5,118.52/x
3. Step 3: Cross multiply
   12,913.96x = 19,353.92 × 5,118.52
4. Step 4: Simplify right side
   12,913.96x = 99,063,426.60
5. Step 5: Solve for x
   x = 99,063,426.60/12,913.96
6. Step 6: Final answer
   x = 7,671.03