Finding the Fourth Proportional to 10,259.57, 14,158.20 and 5,543.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,259.57 : 14,158.20 = 5,543.84 : x
2. Step 2: Convert to fraction form
   10,259.57/14,158.20 = 5,543.84/x
3. Step 3: Cross multiply
   10,259.57x = 14,158.20 × 5,543.84
4. Step 4: Simplify right side
   10,259.57x = 78,490,795.49
5. Step 5: Solve for x
   x = 78,490,795.49/10,259.57
6. Step 6: Final answer
   x = 7,650.50