Finding the Fourth Proportional to 13,245.76, 19,857.12 and 5,043.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,245.76 : 19,857.12 = 5,043.52 : x
2. Step 2: Convert to fraction form
   13,245.76/19,857.12 = 5,043.52/x
3. Step 3: Cross multiply
   13,245.76x = 19,857.12 × 5,043.52
4. Step 4: Simplify right side
   13,245.76x = 100,149,781.86
5. Step 5: Solve for x
   x = 100,149,781.86/13,245.76
6. Step 6: Final answer
   x = 7,560.89