Finding the Fourth Proportional to 5,113.02, 7,672.50 and 2,151.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,113.02 : 7,672.50 = 2,151.25 : x
2. Step 2: Convert to fraction form
   5,113.02/7,672.50 = 2,151.25/x
3. Step 3: Cross multiply
   5,113.02x = 7,672.50 × 2,151.25
4. Step 4: Simplify right side
   5,113.02x = 16,505,429.60
5. Step 5: Solve for x
   x = 16,505,429.60/5,113.02
6. Step 6: Final answer
   x = 3,228.12