Finding the Fourth Proportional to 7,123.53, 10,686.51 and 2,192.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123.53 : 10,686.51 = 2,192.25 : x
2. Step 2: Convert to fraction form
   7,123.53/10,686.51 = 2,192.25/x
3. Step 3: Cross multiply
   7,123.53x = 10,686.51 × 2,192.25
4. Step 4: Simplify right side
   7,123.53x = 23,427,501.55
5. Step 5: Solve for x
   x = 23,427,501.55/7,123.53
6. Step 6: Final answer
   x = 3,288.75