Finding the Fourth Proportional to 10,020.02, 13,826.78 and 5,543.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,020.02 : 13,826.78 = 5,543.78 : x
2. Step 2: Convert to fraction form
   10,020.02/13,826.78 = 5,543.78/x
3. Step 3: Cross multiply
   10,020.02x = 13,826.78 × 5,543.78
4. Step 4: Simplify right side
   10,020.02x = 76,652,626.43
5. Step 5: Solve for x
   x = 76,652,626.43/10,020.02
6. Step 6: Final answer
   x = 7,649.95