Finding the Fourth Proportional to 13,788, 20,677.68 and 5,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,788 : 20,677.68 = 5,022.72 : x
2. Step 2: Convert to fraction form
   13,788/20,677.68 = 5,022.72/x
3. Step 3: Cross multiply
   13,788x = 20,677.68 × 5,022.72
4. Step 4: Simplify right side
   13,788x = 103,858,196.89
5. Step 5: Solve for x
   x = 103,858,196.89/13,788
6. Step 6: Final answer
   x = 7,532.51