Finding the Fourth Proportional to 10,128.54, 13,977.35 and 5,652.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,128.54 : 13,977.35 = 5,652.24 : x
2. Step 2: Convert to fraction form
   10,128.54/13,977.35 = 5,652.24/x
3. Step 3: Cross multiply
   10,128.54x = 13,977.35 × 5,652.24
4. Step 4: Simplify right side
   10,128.54x = 79,003,350.89
5. Step 5: Solve for x
   x = 79,003,350.89/10,128.54
6. Step 6: Final answer
   x = 7,800.08