Finding the Fourth Proportional to 10,259.09, 14,157.50 and 5,543.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,259.09 : 14,157.50 = 5,543.36 : x
2. Step 2: Convert to fraction form
   10,259.09/14,157.50 = 5,543.36/x
3. Step 3: Cross multiply
   10,259.09x = 14,157.50 × 5,543.36
4. Step 4: Simplify right side
   10,259.09x = 78,480,020.70
5. Step 5: Solve for x
   x = 78,480,020.70/10,259.09
6. Step 6: Final answer
   x = 7,649.81