Finding the Fourth Proportional to 7,773.68, 10,735.56 and 5,123.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,773.68 : 10,735.56 = 5,123.12 : x
2. Step 2: Convert to fraction form
   7,773.68/10,735.56 = 5,123.12/x
3. Step 3: Cross multiply
   7,773.68x = 10,735.56 × 5,123.12
4. Step 4: Simplify right side
   7,773.68x = 54,999,562.15
5. Step 5: Solve for x
   x = 54,999,562.15/7,773.68
6. Step 6: Final answer
   x = 7,075.10