Finding the Fourth Proportional to 13,320.48, 19,981.52 and 5,002.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,320.48 : 19,981.52 = 5,002.72 : x
2. Step 2: Convert to fraction form
   13,320.48/19,981.52 = 5,002.72/x
3. Step 3: Cross multiply
   13,320.48x = 19,981.52 × 5,002.72
4. Step 4: Simplify right side
   13,320.48x = 99,961,949.73
5. Step 5: Solve for x
   x = 99,961,949.73/13,320.48
6. Step 6: Final answer
   x = 7,504.38