Finding the Fourth Proportional to 16,836.02, 25,256.86 and 5,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,836.02 : 25,256.86 = 5,146.50 : x
2. Step 2: Convert to fraction form
   16,836.02/25,256.86 = 5,146.50/x
3. Step 3: Cross multiply
   16,836.02x = 25,256.86 × 5,146.50
4. Step 4: Simplify right side
   16,836.02x = 129,984,417.12
5. Step 5: Solve for x
   x = 129,984,417.12/16,836.02
6. Step 6: Final answer
   x = 7,720.62