Finding the Fourth Proportional to 10,128.45, 13,977.54 and 5,652.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,128.45 : 13,977.54 = 5,652.03 : x
2. Step 2: Convert to fraction form
   10,128.45/13,977.54 = 5,652.03/x
3. Step 3: Cross multiply
   10,128.45x = 13,977.54 × 5,652.03
4. Step 4: Simplify right side
   10,128.45x = 79,001,475.41
5. Step 5: Solve for x
   x = 79,001,475.41/10,128.45
6. Step 6: Final answer
   x = 7,799.96