Finding the Fourth Proportional to 16,809.93, 25,219.35 and 5,123.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,809.93 : 25,219.35 = 5,123.25 : x
2. Step 2: Convert to fraction form
   16,809.93/25,219.35 = 5,123.25/x
3. Step 3: Cross multiply
   16,809.93x = 25,219.35 × 5,123.25
4. Step 4: Simplify right side
   16,809.93x = 129,205,034.89
5. Step 5: Solve for x
   x = 129,205,034.89/16,809.93
6. Step 6: Final answer
   x = 7,686.23