Finding the Fourth Proportional to 16,938.64, 25,409.31 and 5,251.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,938.64 : 25,409.31 = 5,251.69 : x
2. Step 2: Convert to fraction form
   16,938.64/25,409.31 = 5,251.69/x
3. Step 3: Cross multiply
   16,938.64x = 25,409.31 × 5,251.69
4. Step 4: Simplify right side
   16,938.64x = 133,441,819.23
5. Step 5: Solve for x
   x = 133,441,819.23/16,938.64
6. Step 6: Final answer
   x = 7,877.95